Answers Math 7 Grade
NOTE: Wherever the
choices are given, either the correct answer is indicated by "x", or it is underlined. Wherever the choices are not given, the
answer is printed in italics fonts.
1. Make
decimal by TWO methods:
a) 3/8
0.375
b)
13/50
0.26
c) 15 whole number, 3 over 5
15.6
(answer is given in italics fonts)
2. Add the following three numbers:
i) one
million two hundred seventeen thousand
ii) ten million five
thousand forty
iii) fifty one thousand
three
11,273,043
3. Least common factor: 13, 26
26
4. 7.3 will go right, left or between:
(Note: The phrase underlined is correct answer)
6.5
.. 8.5
.
5. if 1050 a + 950 = 2a + 3200
2a, then a = ?
-1200
6. What is more:
35/2 percent of $ 800
or 33%
of $ 600 (Note: The phrase underlined is the correct answer)
7. I had 1800 books. 20% I had sold
out and 5% I gave to library. Then how many I left?
1350
8. 7½ % of $ 120 = $
9
9. Which is bigger:
2/5,
44%,
or 0.391 (the one underlined is true)
10. I purchased a house for $
45,000. After a few years its price increased by 150%. What is its
new
price?
$ 67,500
11. 0.38 of 3000 kilometer
1,140
12. G.C.F. of 66, 78 and 54.
6
13. 3/6 + 25% + 0.3 (answer must be
in fraction)
1 whole number 1 over 20
14. How much percentage:
i) 66 out of 200
33%
ii) 330 out of 1000
33%
iii) 54 out of 1080
5%
15. Make percentage:
8/25,
0.28,
1½
32%
28% 150%
16. Add:
3/12
plus 5/8 plus 0.2
43/40
17) Ratio between the salaries of
Joseph, Pica and Raju is 8:7:1, if the salary of Joseph is 560 pounds.
What is the salaries of Pica and Raju?
Pica $490 Raju $70
19) Divide the amount $ 11000 in
such a way that Mr.A gets as much as double of Mr. B and Mr. C gets one third of Mr. A
A2000, B3000, C6000
20) Ratio between the ages of
father, mother and son is 2/3 : ½ : 1/3. If sons age is 40 years. What is the
age of father?
80 yrs
21) Make decimal:
34%, 7/8%,
120%, 11/12
,34
.00875 1.2
.92
22) Make fraction:
1.2, 0.75,
50%, 25/3%
6/5
Ύ
½ 1/12
23) 50 x
1,300
65,000
24) 520,000 χ
260 2.000
25) D I V I S I B I
L I T Y
|
Number
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2
|
3
|
4
|
5
|
6
|
7
|
9
|
|
98811
|
|
x
|
|
|
|
|
x
|
|
700
|
x
|
|
X
|
|
|
|
|
|
2152
|
x
|
|
x
|
|
|
|
|
|
12130
|
x
|
|
|
X
|
|
|
|
|
343
|
|
|
|
|
|
X
|
|
26) Make the simplest (lowest) form:
2640 / 3300, 2100 / 700,
45 / 63, 30 / 42
4/5
3/1 5/7
5/7
27) Arrange in ascending order:
36%
0.4 ⅓ 1
0.25 20½
ii
iii
i
iv v
28) Simplify the ratio 30 : 70 : 20
3 : 7 : 2
29) Homers age 45 yrs, Ritas age
60 yrs, ratio between Homer & Rita?
3:4
30) Ratio is based upon _____
(a)
Addition & subtraction (b) Multiplication
& division (underlined is correct)
31. Ratio between the obtained marks
of Julia and Rosa is 1:3, who obtained better marks?
Rosa
32. In the above question how many
marks will Rosa obtain, if Julia obtains 1300 marks.
3900
33. What are the six factors of 18
1,2,3,6,9,18
34. Ύ of the population of a town is
rich and remaining is poor. What fraction represents the poor population?
1/4
35. Philips radio costs $ 42, Sony
radio costs $ 35. What is the standard ratio between their prices?
6:5
36. Commutative property or
Associative property?
(a + b) + c
= a + (b + c) Associative
b + c = c +
b Commutative
37. Simplify the ratio ½ : ⅝ : 2
4:5:16
38. Is 18 a factor of 84?
no
39. a + 0 = a, this is an example of
____ Identity
Additive
40. any number having exponent zero
equals to .....
one
41. 0.32000 = 0.32
F/T
true
42. 0.567 = .05670
F/T
true
43. 56 x 1 = 56; this is ____
identity.
Multiplicative
44. if a = -3, b = 5; evaluate a +
b2
28
45. if m = -2; evaluate 5m + m3
2
46. if x = 1, y = 0, evaluate 4x
9y - x4
3
47. Sum of 7 and 2 is 7 + 2 and
difference is _____ 7 - 2
48. Product of x and y
is
________
xy
49. My age is x years. What was my
age 6 years ago
X
- 6
50. My age is x years.What would be my age after 6 year
X
+ 6
51. Double of b is 2b and half of b
is _____
b/2
52. Solve: Ύ - 3½ +
4
1 Ό
53. Robert worked the whole month of
April but only weekdays (not weekends). He made $ 60 a day. What was his total income in
April?
$
1,320
54. The time is 20 minutes past 12.
What kind of angle the two needles make?
Obtuse
55. The time is Quarter to 1. What
kind of angle the two needles make?
Obtuse
56. Select a time when the
straight angle is made by the needles.
6
Oclock
57. I add a decimal number in 34.2,
I get 49.77, what number do I add?
15.57
58. I multiply a number by 328, I
get 1312. By which number I multiply.
4
59. I divide a number by 1236, I get
206. By which number I divide?
6
60. a)100 means hundred or ____
b)1000 means thousand or ____ c)1,000,000,000 means billion or
____
hecto, kilo, giga
61. 1/100 means ____ and 1/1000
means ____
centi, milli
62. Which is smaller centi or milli?
mili
63. Milli means
___ a)thousandths
b)hundredths
64. Match
Hecto - 100
Kilo - 1000000000
Giga - 1000
65. Price of one dozen books is $
360. What is the price of 5 books?
$ 150
66. 349.78 x 1 = 349.78
F/T true
67. 7x + y4
what is the co-efficient of x, what
is the co-efficient of y, what is the exponent of x?
-7, 1,
1
68. Write in decimal: 235/100,
5/1000, 6423/10
2.35,
0.005 , 642.3
69. If 0.5a = 73.5, find a
147
70. A group of soldiers eats 5
breads a day. How many breads they eat in May and how many in June?
155,
150
71. a=1, b=-2, c=3, d=0, evaluate:
d(a + b 3c)
zero
72. 45m is same as m multiply
45 F/T
true
73. Find quotient & remainder: 882537 divided by 22
40115R7
74. Find quotient & remainder: 7614281 divided by 25
304571R6
75.
- 23.5 = 891.13 (fill in the
blank)
914.63
76.
.. x 12.3 = 8118
660
77. 1539 is what percent of 5130?
30%
78. 161 is what percent of 230?
70%
79. What is the 15/2% of 840 miles
63
80. Solve ⅔ of 111111 yards
74074
81. 0.01 of 2398 cm (give the answer
in mm)
239.8
82. Which is smaller 2.400 or 2⅓
83. Which is smaller 8.011
or 9⅜
(without solve i.e. oral)
84. Which is smaller 11.893
or 14
(without solve i.e. oral)
85. solve 4(9.23 0.024 x 100 +
1.1) 31.72
86. Ratio between the prices of
table and chair is 90:60. What is the price of Chair, if the price of table
is 21 dollars.
$ 14
87. Ratio among the salaries of
Mr.X, Mr.Y and Mr.Z is respectively 42:14:56. What is the salary of Mr.X and Mr.Z, if Mr.Ys salary is $
700.
$
2100, 2800
88. A B
C D
01
: 05 : 02
: 04
20 : 100
: 40 : 80
45 :
225 : 90 : 180
7 :
35 : 14
: 28
89. (44 20.20 x 2.0) + (3 + 2/5 x
3)
7.8
90. Multiply 41.2 by 0.105
4.326
91. Multiply 0.004 by 1009
4.036
92. If the ratio between the ages of
Baby Saira and her grandmother is 1:4, it means grandmothers ___
times older than Saira.
four
93. If the ratio between the weights
of Kol and Bol is 2:1, it means ____s weight is half than _____.
Bol,
Kol
94. Is 4321 divisible by 7? By 6? By
9? By 10?
No No No
No
95. 0.3 and 3.0 are (a)same (b) not
same
96. 34.34 and 34.340 are (a)same (b)
not same
97. 100 and 100/1 are (a)same
(b) not same
98. What is the remainder if 261295
is divided by 24.
7
99. What is the quotient if 127162
is divided by 31.
4102
100. Write any five numbers each of
3 digits divisible by 6
101. Write any five numbers each of
4 digits divisible by 9
102. Is 680 divisible by 7?
No
103. What numbers of the followings
are the factors of 28:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 20,
27, 28
104. Which numbers of the following
are the factors of 33: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
22, 33
105. 15% of my wealth I invested in
the business, 8% I gave to charity and 2/3 to wife. What percent left?
11%
106. Factorize:
650
2x5x5x13
107. In first store an item costs $
40.50 with 12½
percent off and in second store the same item costs $ 55 with ½ off.
Determine in which store the item is cheaper?
108. A package of meat is enough for
20 cats for 30 days. If 5 cats moved to another state, for how many
days the same quantity of meat would be enough?
40 days
109. Write in numbers:
i) Fifty two million, five hundred three thousand.
52,503,000
ii) Seventy thousand
seven 70,007
iii) One billion, fifty five million, three hundred sixteen
thousand eighty five 1,055,316,085
iv) Twenty million, five hundred thirty thousand, one
hundred twelve. 20,530,112
110. I have $ 175, Can I buy 3
shirts, 2 jackets and 1 Fax machine. See the price list below:
Fax machine: $ 85
Shirt: $
15.50, Jacket: $ 20
Yes
111. A shopkeeper purchased a
typewriter from the wholesaler $300. He puts percentage markup of the
typewriter as 15%. What is the price of the typewriter for the customer?
$ 345
112. 1.3 x 100 x 200 =
26,000
113. Make decimal:
5½%, ⅞, 1Ύ
0.055 .875
1.75
114. Make fraction:
50%, 2.005, 0.33
½ 401/200
33/100
115. A customer gave a bill of $
20 to the cashier. He purchased an item for $ 6.00. If the sale tax is 8%. How
much money the cashier will return him?
$ 13.52
POLYGONS:
116. Octagon has
angles &
sides. 8
117. Heptagon has
angles &
sides. 7
118. Hexagon has
angles &
sides. 6
119. Pentagon has
angles &
sides. 5
120. 2.33 x
.. =
4.66 2
121. 2.33 x
. =
466 200
122. 2.33 x
. =
2330 1000
123. 2.33
. 15 =
0.156 (x, χ)
Combine with a line:
124) having 3 sides but not 3
angles,
is not a triangle.
125) An obtuse angle triangle
126) having 4 sides & 4 angles
 is a quadrilateral
127) Pentagon
128) Octagon is a polygon which
has six sides and six angles F/T
False
129) write increases or decreases
a) Price
. If there is discount. decreases
b) Price
. If there is percentage
markup. increases
c) Price
. If there is sale tax. increases
d) Price
. If there is off decreases
130) How much total money will I pay
if I buy a
machine for $ 400 with the sale tax
8.25%?
$ 433
131) A few lines meet together on
the same point. What is the sum of the angles?
360
132) Determine the kind of triangle:
A) Scalene
1.Obtuse angle
B) Equilateral 2.Acute triangle
C) Isosceles 3. Right triangle
|
Angles 1000 200
600
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A
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1
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Each angle 600
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B
|
2
|
|
Two angles 450 each
|
C
|
3
|
|
Sides 3 3.5 4
|
A
|
2
|
|
Sides 1.2 4 4
|
C
|
2
|
|
One side 2 second double of it and
third three times of it
|
A
|
2
|
|
One side 3 and other two Ύ of it
|
C
|
2
|
133) Can you make a triangle having
angles 110, 65, 45 degrees?
No
134) We
the exponents in
multiplication
(i) add (ii) subtract (i)
135) We
. the exponents in division
(i) add (ii) subtract (ii)
136) Add (simplify):
(i) 3ab ab + ac 5bc + 2ab + 6ac
+ 2bc
4ab + 7ac
3bc
(ii) -12a4 a + a4 + 3a a + a - 10a
-11a4
- 8a
(iii) 9a2b + 4ab2 a2b + 2ab2 + 7a2b + a2b + 4ab2
10ab2 + 16a2b
(iv) 2c2 4c2 + c 2c + c + c2 + c - 100c
-c2 - 99c
137. z4 = z x z x
..
z x z
138. 105 = 10 x 10 x 10 x
.
10 x 10
139. 100,000,000 = 10 exponent
.
6
140. 0.8371 = 8371 / .....
10000
141. 1.23 = 123 / ....
100
142. Write one million and convert
it into 10 exponent
106
143. Write one billion and convert
it into 10 exponent
109
144. 231 x 1,000,000 =
.
231,000,000
145. 9.8, 9.80, 9.800, 98/10, ALL
same F/T
146. 1.24, 12.4, 124.0, ALL same
F/T
147. 32.25 x 103 is a scientific notation F/T
148. 4.12 x 1,000 is a scientific
notation F/T
149. 2.41 x 104 is a scientific notation F/T
150. 25,500 is a standard
notation F/T
151. Change into scientific
notation: 1270
1.27
x 103
152. Change into scientific
notation: 2070000
2.07 x 106
153. Make scientific notation and
check answer:
i) 70,000
7 x 104
ii) 7 7 x 100
iii) 275,000
2.75 x 105
iv) 9090
9.09 x 103
v) 225
2.25 x 102
154. If the decimal moves to the
right, the
value
.. (increased,
decreased)
155. Solve: 345 multiply 106
345,000,000
156. Scientific notation:
A) 2359.1 x 106 = 2.3591 x
109
B) 184 x 108 = 1.84 x
.
1010
C) 0.412 x 105 = 4.12 x
..
104
D) 71.5 x 10-7 = 7.15 x
..
10-6
E) 763 x 10-6 = 7.63 x
10-4
157. Answer must be in the form of
scientific notation:
i) 1.21 x 10-3 x 4 x 107
4.84 x 104
ii) 3.41 x 107 x 7.21 x
104
2.46 x 1012
iii) 4.1 x 10-5 x 5.11
x 104
2.1 x 100
iv) 3.28 x 108 x 2.34 x
109
7.7 x 1017
v) 2.3 x 10-6 x 2.18 x
10-2
5.014 x 10-8
158. This is a
.. Quad.
159. The sum of its angle is
.. 360
160. Triangle with two angles
measuring 20 and 70 degrees is a
triangle. Right/Scalene
161. Base2 + Perp2 = Hyp2, This is a
..
theorem
Pythogorean
5. Is it necessary that all the
angles of Rhombus are right angles. No
162. Figure not closed is (a)not
a polygon (b)a polygon.
163. A regular polygon has all the
angles and sides (a)equal (b)unequal
164. Polygon having the least number
of angles is
three
165. Polygon with 7 sides and 7
angles is a
..
Heptagon
166. This is not a polygon. Why?
Not
closed
167. Every Square is also a
Rhombus. F/T
168. Every Rhombus is also a
Square. F/T
169. Trapezoid has only
.. sides
parallel.
(2, 3, 4)
170. Which in the following are
not Quadrilateral:
A) Square
C) Circle
B)
Trapezoid
D) Parallelogram
E) Rectangle
F) Right angle
triangle
171. Radius is bigger than
diameter F/T
False
172. Simplify, wherever possible:
i) a3b +
ab3 2ab3 a3b + 17ab3
16ab3
ii) 9a2 + a4
a2 5a (6a4 + a2 2a)
-5a4 + 7a2 3a
iii) m(3y 3m 6) + 6(m
4ym) + m
3m2 27my + 13m
iv) a + a3 + a4
No
v) k3p + 2k2p
kp2 - 7kp3
No
vi)100m2 + 50m5
200m2 + 80m3 + 10m
50m5 + 80m3 100m2 + 10m
173. Factorize, where possible:
A) 12wt2 + 42t2
+ 66 t3y
-6t2 (2w 7 11ty)
B) 15p(k + 9) 25pr(k + 9)
+ 5p2(k + 9)
5p(k + 9)(3 5r + p)
C) abc + ad + bc
Unsolvable
D) 2(a + b) - m(a + b) +
6z(a + m)
Unsolvable
E) 330d2t3
2.3.5.11.d.d.t.t.t
F)
89
Unsolvable
G) ab + ac + 4b + 4c
(b + c) (a + 4)
174. In a primary school, if the
total number of students was 800, and if 332 were boys, were there more boys or
girls at this school? 468girls
175. 150 sweets can be packed into
one
cardboard box. How many sweets
can be packed into 160 such boxes?
24,000
176. A man put 800 books evenly into 25 boxes. How many books were packed in each box? 32
177. 757 is a composite number. Y/N No
178, There are 6 books in one bundle. If all bundles contain the same number of
books, find the total number of books in 4 bundles. 24 books
179. Find the number of days in 10
weeks. 70
180. Jacob had 160 oranges and 140
apples. Alen had 148 oranges and 152 apples. Who had more pieces of fruit? equal
181. A carpenter made 250 tables
during one month. If he made the exact
number of tables each day, and he had worked 25 days during this month, how
many tables was he able to make each day?
10 tables
182. 78.9 and
78.9000 is the same F/T True
183. 25 and 25/1 is the same F/T
True
184. 78 and 0.78 is the same F/T
False
185. 10/6 x
60/7 14-2/7
186. Convert the following
fraction into a decimal:
47/125
A) 0.476 B) 1.376 C) 0.376
187. Find the cube root of
64: 4
188. Find the missing
number: 35 x ____
= 1225
35
189. Which numbers
are perfect sq.
400, 81, 249, 121, 125, 900, 75, 625
190. If x = 0 and y
= -18, evaluate: x + y 5
-23
191. Find the quotient for: 78,160 χ 10
7,816
192. On Sun my bank balance was $ 390. On Mon I
withdrew a certain amount. On Tues I
withdrew the double amount of Mons. On Wed I deposited $ 10. Then I have the
bal. $ 100. Determine how much did I
withdraw on Mon and Tues?
$ 100 & 200
193. Find the value of y in -7y = 0
0
194. Find the GCF of the following two numbers:
72, 26 2
195. Sam deposited $33x in January, $36x in February, and
$30x in March. If the total amount
deposited is $792, what is the value of x?
8
196. 15.2,
25.3, 35.4,
.,
..
45.5
55.6
197. If x = 7, evaluate: 9x + 1
64
198. If it costs $16 to buy 4 wallets (of the same type),
find the cost of one wallet. $4
199. 112 boys and 142 girls from second grade and 136 boys
and 130 girls from third grade went to a camp. From which grade were there more
students at the camp? 3rd grade
200. Find the missing number: -5, -1, 3,
,
7, 11
201. Evaluate
13 x _____ = 130 10
202. Find the value of x in 6 - x = 13
-7
203. True or False?
173/500 = 0.336 .346
204. How many hours are there in 1 year (if it is not a leap
year)? 8760
205. Square root of: 289 17
206. How many hours are there in 2 days? 48
207. There were 79 bicycles in Peters shop. He bought 30 more bicycles. Then he sold 42 bicycles. How many bicycles
are left now. 67
208. Square root of 8100 90
209. Leap year is a year which
Divisible by 4
210. If 2349 is divided by 20, find quotient and remainder. 117
R 9
211. Find the 8% of 19 1.52
212. Julies mother gave her $781 for her monthly
expenses. If she spent $25 each day in
May, how much money did she have left at the end of that month? $ 6
213. Find the Greatest Common Factor of the following three
numbers: 90, 54, 24 6
214. In Pauls shop there were 90 plums. He noticed that 13 of them were rotten and
threw those into the compost. He sold the remaining plums at the rate of forty
cents each plum. If he purchased all the 90 plums for $ 25. How much profit he
gained?
$ 5.80
215. 6 labors can complete a construction work in 20 days.
How many labors are required if the work has to be completed in 15 days? 8
216. True or False:
If x = 7, 5x + 9 >
54 F
217. Find the value of x in 0 - x = 17
-17
218. Find the missing number:
2, 3, 5,
7, 11,
.. ,
..
,
13, 17, 19
219. At a magic show, the total number of tickets sold for
both performances on Monday was 730. On
Tuesday 426 tickets were sold for the matinee and 364 for the evening
performance. On which day were more tickets sold? Tues
220. Find the Quotient and the Remainder for:
252,193 divided by 12 21016 R 1
221. True or False?
0.005 = 0.500 False
222. Square root of: 22500 is
.. 150
223. Find the GCF of the following two numbers:
128, 72
8
224. Richard had to solve the problem: 175 χ 10 He said that the quotient was 17 and that the
remainder was 10. Was Richard
correct? No
225. 10/14 + 6/12
and simplify, if possible.
17/14
226. Find the missing number: 1800 = 6 x
___ x 15
20
227. If x = 2 and y = 4, evaluate: 20x + 4y + 12
68
228. What is the coefficient of x in the expression:
12x + 7 12
229. $ 18.10 is what percent of $ 72.40? 25%
230.There are 22 classes in a school. If there are 25 students in each class, how
many students are there at the school altogether? 550
231. Convert the following fraction into a decimal: 15/25 0.6
232. Is 3 a perfect square? No
233. Find the Least Common Multiple (LCM) of the following two numbers: 7, 7
7
234. <, > or =
a) 200321 ___ 89267 b) 0.71 ___ ⅝
> >
235. 10008 will
go Left, Right or Between
..... 104
..... 105 .......
Between
236. 399 will go
Left, Right or Between
.... 456 .... 9812 ....
Left
237. 19875 will go
Left, Right or Between
.... 456 .... 9812 ....
Right
238. 3211 will go
Left, Right or Between
|
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between enn
|
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9765 23111
239. Add one million fifty thousand nine AND thirty five
million seven hundred fifty one thousand
36,801,009
240. Subtract Eight
thousand five hundred twenty two
FROM Two hundred thirty five
thousand one hundred thirty eight 226,616
241. What is the 8 percent of 19 1.52
242. Robert had $ 600. He spent 15% of this amount for his
food, 40% for his college fee and the remaining money for house rent. How much
amount he spent for house rent? $ 270
243. Greatest Common Factor of 30 and 84 6
244. Least Common Multiple of 16, 12, 30 240
245. <
> =
a) 12½ % of $ 160 ___ 0.5 of $ 32 >
b) 0.75 ___ ⅝ > c) 2⅓ ___
2.33 =
246. Richard obtained 560
marks out of 700. How much percentage he got?
80%
247. Make decimal and percentage both: ⅝
0.63 & 63%
248. Multiply 0.423
and 0.65 0.27495
249. divide 17)0.4138, find quotient and remainder
A0.0243 remainder
7
250. Add 2 &
3
9 12 17/36
251.
Make fraction: 6⅔ % 1/15
252. 71 is what percent of 76? (approx) 93%
253. Simplify: 7⅓ - 9Ό + 2⅔ Ύ
254. 14 21 5
25 , 15,
12 Add 713/300
255. Multiply 48 and ⅞ 42
256. Joe earns $ 440 per week and saves 10% of his weekly
salary, while Debbie earns $ 352 per week and saves 12½ % of his weekly salary.
Who saves more and how much? equal
257. If A:B = 6:2 What is A if B is 6 18
258. 5 is what
percent of 40 12½ %
259. 12.318 χ 6 2.053
260. 12.318 χ 0.6
20.53
261. 123.18 χ 0.06
2053
262. Convert 81% into decimal 0.81
263. Divide:
152.38 χ
0.1 1523.8
264. Divide: 152.38 χ 0.001 152380
265. ⅛ - 1.20 + 15% (answer in decimal)
266. Round up the decimal :
23.782
(tenth place) 23.8
267. Round up the decimal:
99.032
(hundredth
place) 99.03
268. Arrange in ascending order: 8%, 0.079, 0.9
0.079,
8%, 0.9
269. Multiply: 0.015 x 1.5 x 0.1
0.00225
270. What is the Reciprocal of 21?
271. What is the Reciprocal of a
b
272. If A:B = 6:13 What is A if B is 91 42
273. Convert 5½ % into decimal 0.055
274. Determine the value of B if A=6 and the ratio of A:B =
2:5 15
275. 300 x 2000 =
.. 600,000 = 6 x 105
276. 12000 x 40 =
480,000
= 4.8 x 105
277. A ratio of 1:5 says that the second number is five
times as large as the ___. First number
278. Is 1024 divisible by 2, 3, 4, 5,
6, 7, 9 and 10
279. Which is greater: 1.65, 160%, 1Ύ
280. Determine the ratio of 24 to 40. 3:5
281. Divide 2/9 by
12 1/54
282. Ratio between the salaries of Son and Father is 2:3.
Fathers salary is 1200 dollars. What would be the salary of the son? $800
283. Which numbers are divisible by 2, 3, 4, 5, 6, 9:
203, 42111,
774, 2005, 89,
112, 5551, 19
3,9 2,3,6,9 5 2,4
284. What are the four factors of 6? 1,
2, 3, 6
285. Simplify the fraction: 42
66 7/11
286. What is ratio of A to B if A=32 and B=44?
8:11
287. Mothers weight is 150 pounds. Her daughters weight is
60 pounds. What is the ratio between their weights? 5:2
288. Are 749, 1162, 4851, 5323 divisible by 7?
289. Factors of 90 are 1,2,3,5,6,9,10,15,18,30,45 and
90 T/F True
290. Find Least Common Denominator
1 5
9 12
36
291. How can you
prove that the number 3916757 can be divided completely by 13.?
292. Divide $ 720 among three persons in such a way if one
person gets $5, then second person gets $6 and third person gets $1. $ 300,
360, 60
293. 5(F 32) =
. C
9
294. Commutative property: When two numbers are added, the
sum is the same regardless of their order for example 2 + 3 = 3 +
. 2
295. Associative Property: When three or more numbers are
added, the sum is the same regardless of their grouping, for example:
(2 + 3) + 4 = 2 + (3 +
) 4
296. Additive Identity: When zero is added in a number, the sum will be the same as
number. For example: 5 + 0 =
. 5
296a. 0.6, 0.60 and
0.600, all of these three are
(a)equal (b)not equal
296b. Multiplicative
Identity: If a number is multiplied by 1, the product will be the same as
number, for example: 10 x 1 =
. 10
296c. Find m, if 12m = 600 -50
296d. How many centuries are there in 900 years?
9
297. (a + b) + c = a + (b + c) is an
.. property
Associative property
298. Write in algebraic expression sum of x and 7
x + 7
299. 2/10 -
8/10 -3/5
300. Natasha used to buy the same amount of milk every day.
In May, she bought a total of 62 liters of milk. How much milk did she buy each
day in May? 2 liters
301. Is 61 a factor of 4596? No
302. Find LCM of 5,
31 155
303. x/1 and x are
the same. F/T True
304. If the time in the clock is 12:15. What angle the two
needles make. Right angle
305. If the time in the clock is 11:20. What angle the two
needles make. Obtuse angle
306. When Sherry divided a number by 7, she got 4 as the
answer. Find the number that had been divided. 28
307. 100 + 10 = 10 + 100 is an
.. property
Commutative
308. One Giga means One Billion and its mathematical value
is
.. 109
309. Additive Identity is
.
and Multiplicative identity is
..
zero
310. Kilo means
., Milli means
., Decto means
., Centi
means
.
1000,
0.001, 100, 0.01
311. (A) Commutative property of addition v
(B) Associative
Property of addition iii
(C) Commutative
property of multiplication ii
(D) Associative
Property of multiplication iv
(E) Additive
Identity Property I
(F) Multiplicative
Identity Property ii
i) x + 0 = x ii)
1 (6) = 6
ii) 3 x 4 = 4 x 3
iii) 2 + (1 + 3) = (2 + 1) + 3
iv) 5 x (1 x 9) = (5 x 1) x 9 v) 9+2 = 2+9
312. Milli means (a)Thousandth
(b)Thousand
313. Kilo means 1000(thousand)
Hecto means 100(hundred)
Centi means 0.01(Hundredth)
Milli means 0.001(thousandth)
All these False/True T
314. A pencil factory manufactures 481 boxes of pencils
every 13 days. How many boxes of pencils
are manufactured each day? 37
315. Total number of students in a school are 524. 263 are
girls. What gender has the school more?
girls
316. Mega means Million and its value 102
F/T False
317. What is the coefficient of y, 12y - 7
12
318. 1/100 is the same as the decimal ______.
0.01
319. (2/9) χ (4/9) =
________ ½
320. A factory produces 280 boxes in one day. How many boxes will be produced in the month
of April?
8400
321. If x = 3 and y = 1,
evaluate: x3 3y 24
322. 57,219 + ____
= 89,075 31,856
323. 352251 is
divided by 17, find quotient and remainder. 20,720,
11
324. 843507 is divided by 21, find quotient 40,167
325. What is the 40% of dollars 30? $ 12
326. 14 is what % of 63 22-2/9%
327. 76 is what % of 82 92-28/41%
328. 6 is ____, y is
the ____ and 2 is ____
Coefficient base exponent
in -6y2
Mark <, >
or equal to
329. 45% of $ 300
____ ⅞ of $ 152 >
330. 0.05 of 1 kilometer ___ 50 meter =
331. (5.3 1.04)
____
2 + 2½ <
332. 4 multiply
24 divide 5 ____ 1.2 x 3 + 1 >
11 40 121
333. Solve: 3(0.02 0.1 + 1.002) ___ 2/3 χ 4/9 >
334. 5 ___
20/6 >
335. Multiply 46.2 by 7.02 324.32
336. Add 11.02 and 2.1 and multiply the sum by 0.0004 0.005248
337. (11.4 9.12) x 1000 2280
338. If A:B = 7:17 What is B if A is 42 102
339. If the age ratio between Sara and Baby is 42:18, What
is Babys age, if Sara is 14 6
340. A ratio of 1:5 says that the second number is ___ times as large as the first. five
341. What is ratio of A to B if A=16 and B=136? 2:17
342. How many total shares are there in the ratio 7:8:1 16
343. Is 63434 divisible by 7? yes
344. 1/7 and 7 are the same. F/T false
345. .645 and .645000
are same F/T true
346. .645 and .0645
are same F/T false
347. 7 and 007 are
same F/T true
348. x and 1x1
are same F/T true
349. What is quotient and remainder if 6813000 is divided by
22 309681, 18
1 2 3 4 5 6 7
11754,
11115, 3724, 811,
1010, 251, 552
350. What numbers are divisible by 2 1,3,5,7
351. What numbers are divisible by 3 1,2,7
352. What numbers are divisible by 4 3,7
353. What numbers are divisible by 6 1,7
354. What numbers are divisible by 5 2,5
355. What numbers are divisible by 7 3
356. What numbers are divisible by 9 1,2
357.Which of the following are not the factors of 54:
1, 2,
3, 4, 5,
6, 7, 8,
9, 10, 12,
18, 21, 27
358. Simplest form of: 210
7/5
150
359. Convert 1220 Fahrenheit into Celsius temperature.
360. Factorize 42 1,2,,3,6,7,14,21,42
361. Which numbers in the following are divisible by
Eleven: 895 2464
10648 6709238
234678 31944
362. Divisibility ?
|
By4
|
By6
|
By7
|
By9
|
By11
|
By13
|
|
278600
x
|
|
x
|
|
X
|
|
|
8473608 x
|
x
|
|
x
|
x
|
X
|
|
2609464 x
|
|
|
|
x
|
X
|
|
952
x
|
|
x
|
|
|
|
|
1325183
|
|
|
|
|
|
|
323136
x
|
x
|
|
|
x
|
|
|
378
x
|
x
|
x
|
x
|
|
|
|
914561
|
|
|
|
|
|
|
216216
x
|
|
x
|
x
|
x
|
X
|
|
2056789
|
|
x
|
|
x
|
|
|
123456789
|
|
|
|
|
|
Solve:
363. (9/1)5 4 =
___ 41
364. 2/(3-8)-5 = ___ -27/5
365. (6+5)-8+4 = ___ 7
366. (9x8)/(1+7) 9
367. (1-3+2)*3 0
368. 5+[3-(5+9)] -6
369. 7+{(9*3)/8} 83/8
370. 2+3[4+(6*3-8)]2 86
371. 3 (12.7 9.7) + (0.6 + 1.002)2 12.204
372. 4 x (3-1) = 4(3-1)
F/T True
373. 1/10000 and 0.001 are same F/T
False
METRIC UNITS:
374. Kilo means thousand (1000)
Hecto means hundred
(100)
Deca means Ten
(10)
Mega means Million
(1000000)
Giga means Billion
(1000000000)
False/True
375. Milli means thousandth
(1/1000)
Centi means hundredth
(1/100)
Deci means tenth
(1/10)
Micro means millionth
(1/1000000)
False/True
376. 0.001 is ____
(a) centi (b) kilo
(c) hecto (d) deci
377. Deci is more than ONE F/T False
378. Hecto is ____ than ONE more/less
379. 0.0001 is ____
(a) centi (b) kilo
(c) hecto (d) milli
380. Which is smallest: Deci, Milli, Micro, Centi
381. Convert 10 degree Celsius into Fahrenheit scale.
382. 100 is ___ (hecto, kilo,
deca)
383. 5000 meters is equal to ___ kilometer
5
384. 0.5 cm = ___
mm
5
385. 20 m = ___ cm
2,000
386. 3.42 km = ___
m
3,420
387. 900 centimeter
= ____ meter
9
388. 45789 meter = ____ km
45.789
389. 23 centimeter = ____ millimeter
230
390. Symbol of centi is c and centimeter is ___
cm
391. Symbol of milli is m and millimeter is ___
mm
392. Symbol of Kilo is ___
k
393. Water freezes at
_0__o Celsius (Centigrade) and boils at _100__o Celsius
(Centigrade) which is a difference of 100o. Water freezes at __32_o
Fahrenheit and boils at _212_o Fahrenheit which is a difference of
__180_o.
394. 100 millimeter = ___ centimeter
10
395. C = (
-
32)
9 F
396. 4 degree C = ___ degree F
39.2
397. 15 o
C is equal to how many o F
5
398. Kumar had $ 300
with him. He purchased 2 shirts and 5 ties. How much money did he leave?
(Prices: per shirt $ 14, tie $ 4.50) $ 249.50
399. 72 degrees Fahrenheit = ___ degrees Celsius
22.3
METRIC UNITS OF WEIGHT
400. 1000 grams =
1 kilogram
100 centigrams = 1 gram
10 milligrams =
1 centigram F/T
3.
5.37 kg = ___ g
5370
401. 1/100 gram = 1
____ centigram
402. 1 gram = ____
milligrams 1000
6. 0.5 kg is
____ than 450.00 grams
(a)lighter (b)heavier (c)equal
403. Ounce, Pound and Ton are the Customary units
of
____
(a)length (b)mass or weight (c)volume
404. 2000 pounds are there in a ton, how many ounces in one
pound?
16
405.Gallon, quart, pint and ounce are the units of __
(a)length (b)mass or weight (c)volume
406. 1 gallon = 4
quarts
1 quart = 2 pints
1 pint = 2 cups
1 cup = ___ ounces 8
407. How many ounces in one gallon?
A
408. How many gallons make 80
quarts? 20
409.(a) This is a ___ angle triangle Rt
 (b)
AB is a ____ Hyp B
(c) AC is a ____ Perp C
(d) BC is a ____
Base
(e) which is the
biggest side AB
(f) Angle A and angle
B are ____ angles. Compl
(g) If AB is 2500
cm long, BC is 1600 cm long,
what is the
length of AC. 1921 cm
410. Which volume is bigger: 1½ pints or 20 ounces
411. What is the price of 2 ounces brake oil, if one cup
brake oil costs $ 6.00
$ 1.5
412. Hecto means 100 and Kilo means ____ 1000
413. What is the smallest unit of length in Customary
system?
inch
414. What is the largest unit of length in Customary system?
mile
415. How many inches in 1Ύ feet ?
21
in
416. Which is bigger? 2½ yards OR 80
inches
417. One angle of a triangle is 25 degree, second angle is
75 degree. What is the size of third angle?
80
418. Is the above one a right angle triangle?
No
419. A frog travels 10 feet in one minute. How much distance
does it travel in one and half hour? (give the answer in Furlong or mile) 1
Furlong 80 yds
2. <, > or = 1 inch ___ 1
centimeter >
2 ft ___ 1
yard <
2
miles ___ 3520 yards =
10
mm ___
1 cm =
440
yards ___ 2 furlongs =
10
yards ___ 28 feet >
1/1000
km ___ 1 m =
420. How many years are there in 2½ centuries?
250
421. How many minutes in one day? 1440
422. I breathe 40 times in three minutes. How many times I
breathe in two hours? 1600
  423. Ribas weekly salary is $ 200. How
much money he will earn in two
years? $
20,800
angle
1 angle 2
a) which angle is
bigger?
b) if angle 2 is
35 , what is the size of angle 1? 145
c) if the pair of
supplementary angles is adjacent to each other, they make intersecting lines or
parallel lines or perpendicular lines. intersecting
425. How many years in 2½ decades? 25
426. Year divisible by four is called ___ year such as 1940,
1948 or 1980 etc. Leap
427. January has _31_
days, April _30_ days, June _30_ days, Sept _30_ days, Feb _28 or _29_
428. What is the change due, if the total purchase is $ 2.35
and a payment for $ 10.00 was given to the clerk? $ 7.65
5. What is the Sale
price of a $12.46 item that is 1/2 off?
$ 6.23
429. What is the Sale
price of a $6.24 item that is 1/3 off? $ 4.16
430. a) 245.612 x 100 =
. 24561.2
b) 245.612 χ 100 =
. 2.45612
c) 2462.8 χ 2000 =
. 1.2314
d) 21.3 x 900 =
. 19170
431. If the Payment is $20 and the purchase is as below,
determine the coins for return change:
|
Purchase
amount ?
|
$3.13
|
$9.20
|
$19.04
|
$2.89
|
$4.03
|
|
10 dollars bill
|
1
|
1
|
|
1
|
1
|
|
05 dollars bill
|
1
|
|
|
1
|
1
|
|
01 dollar bill
|
1
|
|
|
2
|
|
|
Quarters
|
3
|
3
|
3
|
|
3
|
|
Dimes
|
1
|
|
2
|
1
|
2
|
|
Nickels
|
|
5
|
|
|
|
|
Pennies
|
2
|
|
1
|
1
|
2
|
432. If I give the bill $ 50 and my total purchase is $
23.80. Can the clerk give me two bills of $20 in return? No
433. A company gives 6% commission to the salesman, if the
sale is $85.86. What commission does the salesman get? $ 5.15
434. Oral estimation (which is correct approx.)
|
Total sale$
|
Commission Rate
|
Amount
1
|
Amount
2
|
Amount
3
|
Amount
4
|
|
326
|
5%
|
$ 25
|
$ 17
|
$ 40
|
$ 09
|
|
298
|
3.5%
|
$12.81
|
$18.11
|
$20
|
$10.19
|
|
8000
|
2.2%
|
$175
|
$ 200
|
$ 90
|
$ 250
|
|
202
|
25%
|
$41.00
|
$29.80
|
$47.81
|
$50.00
|
|
150
|
1.968%
|
$ 2.99
|
$ 10
|
$ 15
|
$ 5.50
|
|
995
|
4%
|
$39.36
|
$45.25
|
$19
|
$25
|
435. Earning of sale is dollars 807, what is the amount of
commission in dollars if the rate is 7%?
$
56.50
436. If Ali gets commission $ 18 on the earning $ 600, what
is the rate in percentage? 3 %
437. What is the sale price of an item costs $ 56.40, if Ό
off. $ 42.30
438. Furniture is on sale with the 20% discount. Original
price of a chair is $ 25. How much money will Rusa pay if she buys three
chairs? $ 60
439. Camera is on 10% discount and VCR on 15% discount. I
purchase two cameras and three VCR. What total amount I have to pay?
Actual price of
Camera $ 370, Actual price of VCR $ 450
$
1813.50
440. a) 72300 x 3000
= _______ 216900000
441. Insert bracket: -7 + 2 x 5 = -25
(-7 + 2) x 5
442. The cost of an item is $ 4 and its percentage markup is
25%, what is its sale price to the consumer? $ 5
443. Make fraction: 0.08,
0.125, 12½ %
2/25 1/8 1/8
444. Multiply 1.5 by 10,000 15,000
445. Multiply 0.009 by 2000 18
446. Divide 262.08 by
300
0.8736
447. Divide 0.8 by 1,000,000 .0000008
448. What is the change due, if the total purchase is $
21.85 and a payment for $ 50.00 was given to the clerk? $
28.15
449. A customer made a purchase of $ 300, if the sale tax is
6%, how much amount will he pay? 318
450. Polygon having 3 sides & 3 angles called ____
Triangle
451. Polygon having 4 sides & 4 angles called ____
Quadrilateral
452. Polygon having 5 sides & 5 angles called ____
Pentagon
453. Polygon having 6 sides & 6 angles called ____
Hexagon
454. Polygon having 7 sides & 7 angles called ____
Heptagon
455. Polygon having 8 sides & 8 angles called ____
Octagon
456. By which number should I multiply 3.51 to make it 351. 100
457. By which number should I multiply 0.3 to make it 6000. 20,000
458. Draw a figure having four sides but not four angles, is
it a Quadrilateral? No
459. Draw a figure having five sides but not five angles, is
it a Pentagon? No
460. How many sides and angles are there in an octagon? eight
461. The sum of 3 angles of a triangle is ___ degree
180
Kinds of Triangle
according to ANGLES
462. Triangle having any 1 angle equals to ____ degree is a
right angle triangle. 90
463. Triangle having any 1 angle bigger than ____ degree is an obtuse triangle. 90
464. Triangle having all angles smaller than ___ degree is
an acute triangle. 90
465. An acute triangle has ____ smaller than 90Ί.
a)all its 3 angles b)only one angle
466. Can you make a triangular shape with the angles 20, 70
and 100 degrees. No
467. The sum of two angles of a triangle is 30Ί and 40Ί the
third angle would be _____. 110
a)right angle b)acute angle c)obtuse angle
468. An ________ triangle has two sides with the same
length. Isosceles
469. If all the three sides of a triangle are equal, it is
called ______ triangle. Equilateral
470. A ____ triangle
has all three sides different lengths.
Scalene
471. Π 1 is 150
degree, Π 2 is 40
degree, Π 3 is 70
degree, what is the size of angle 4.
100
472. What kind of angle 4 is? Obtuse
2
  1 3
4
473. The cost of a typewriter is $ 120 and its percentage
markup is 15%, what is its sale price to the customer? $
138
474. I bought an item for $ 1500. How much will I pay with
the sale tax 5%? $ 1575
475. Which kind of triangle it is:
i) Π A = 10Ί Π B =
41Ί, ΠC = 129Ί Scalene
ii) ΠA =
40Ί ΠB =
50Ί, ΠC = 90Ί Right
iii) ΠA = 50Ί Π B =
31Ί, ΠC = 99Ί Scalene
iv) All 3 angles
equal to 60Ί each Equilateral
v) Two angles are
equal measuring 45Ί each
vi) Each side is 2.3
inch Equilateral
vii) Two sides are
3.0 inches each but third side
is greater Isosceles
476.Side A = 28, Side B = 28, Side C = 28 Equilat.
477.Side A = 1.7, Side B = 2, Side C = 1.8 Scalene
478. In a right angle triangle, Base=40, Perpendicular=30,
Find Hypotenuous. 50
479. Add 3m3 ,
-5m3 and -m3
-3m3
480. Multiply 3m3 ,
-5m3 and -m3
15m9
481. Add 2a2 , 4a ,
-2a , a2
3a2 + 2a
482. Multiply 2a2 , 4a ,
-2a , a2 -16a6
483. Divide - 26 d2ck3
- 13ck2 2d2k
484. Divide 8v3z 22vz2
2vz 4v2 11z
485. Multiply (-4b5k + 14 bk2y) 2by2
486. This is a
question of (i)Addition
(ii)Multiplication (iii)Divide
(2a) (-17a) (ak) 3
487. Simplify:
i) 2z
+ z + z 4z
ii) 2z x
z x z 2z3
iii) a3b +
ab + ab
+ a3b
+ ab 2a3b+3ab
iv) a3b x
ab x ab
x a3b
x ab a9b5
v) d
+ d2
+ d3 + d
+ d2
+ d3 2d+2d2+2d3
SCIENTIFIC NOTATION
488) Write without the multiply
sign:
i) 19
x 19 x 19 x 19 194
ii) 10
x 10 102
iii)
9345 x 9345 x 9345 (9345) 4
iv) 10
x 10 x 10 x 10 x 10 x 10 106
489) False/True
a) 105 = 100,000 T
b) 103
= 1,000 T
c) 107 = 1,000,000 (one million) F
d) 23.6 = 236/100 F
e) 0.652 = 652/1000 T
f) 45 x 100 = 45,000 F
g) 7 x 10,000 = 70,000 T
h) 2,361 x 10 = 23,610 T
i)
5.34 = 5.340 T
j)
5.3400 = 5.34 T
k) 5.34 = 53.40 F
490) Solve and give the answer without
multiplication sign:
a) 3.89 x 1,000 3890
b) 1.1 x 100 110
c) 2.1111 x 10,000 21111
d) 1.5 x 103 1500
e) 2.111 x 107 21110000
491. Circle the scientific notation expression:
a) 45.3 x 103 b)
4.53 x 103
c) 1.1 x 10,000 d) 8.70 x 100
e) 4.67 f) 3.233
492. Convert into scientific notation and
check your answer:
a) 30400 3.04 x 104
b) 1340 1.34 x 103
c) 65900000 6.59 x 107
d) 6 6 x 100
e) 6.1 6.1 x 100
493. Right or Wrong?
a) 5280 is equal to 52.8 x 103 W
b) 6.71 x 100 is scientific notation W
c) 2.3,
2.30, 2.300, 23/10
ALL same R
d) 1,000 = 103 R
e) If the decimal goes to the left, the value
increased W
f) 0.763 and 763/1000 is the same R
494. Convert the scientific notation into
standard notation:
i)
4.30 x 104 43000
ii)
1.11 x 105 111000
iii)
1.11 x 100 1.11
iv)
8.03 x 108 803000000
495. (A)less than
(B)more than (C)equal
i)
34000
. 8590
ii) 2.17 x 100
.
8.36 x 10 >
iii) 4.50 x 104
.
1.11 x 105 <
iv) 2.31 x 103
.
9.63 x 105 <
v) 606000
. 7.93 x 105 <
vi) 3.71 x 105
.
2.91 x 105 >
vii) 7.94 x 106
25,003 >
viii) 6.51 x 103
..
6,510 =
496. Write the decimal into
scientific notation
and check your answer:
A) 0.00364 =
. 3.64 x 10-3
B) 0.00000383 =
. 3.83 x 10-6
C) 0.0000401 =
4.01 x 10-5
D) 342/100000 =
3.42 x 10-3
E) 206/10000 =
.. 2.06 x 10-2
F) 641000 =
. 6.41 x 105
497. Write the scientific
notation into decimal
and check the answer:
i)
7.83 x 10-3 =
. 0.00783
ii) 1.11 x 10-6 =
. 0.00000111
498. Convert into fraction:
i) 4.45 x 103 4450
ii) 2.56 x 10-5 2/78125
499. Write the power of 10:
A) 235.4 x 105 =
2.354 x 10 exponent 7
B) 43.1 x 10-4 = 4.31 x 10
exponent -3
C) 8921.5 x 103 = 8.9215 x 10
exponent 6
D) 87.3 x 10-6 = 8.73 x 10
exponent -5
Multiply the scientific
notation:
500. (9.3 x 10-4) (7 x 10-6) 6.51
x 10-9
501. (1.7 x 105) (4 x 108) 6.8 x 1013
502. (6.4 x 10-7) (4 x 10-7) 2.56 x 10-13
503. (1.9 x 104) (3 x 10-1) 5.7 x 103
504. (6.8 x 102) (6 x 10-6) 4.08 x
10-3
505. (3.42 x 10-4) divide (1.2 x 10-5)
28.5
506. (5.36 x 105) divide (2.67 x 10-4)
 507. (1.98 x 109) divide (1.39 x 107)
508. This figure is
 (a)polygon (b)not polygon
509. This figure is
 (a)polygon
(b)not polygon
510. This figure is
(a)polygon
(b)not polygon
511. Regular polygon is a polygon whose all
are and all
are
congruent.
Sides, angles
512. The measurement of all three angles of
equilateral triangle is
degree. 60
 513. This is
.
Triangle.
Scalene
& Obtuse
514. Triangle having all the three angles smaller
than 90 degree, called
triangle. Acute
515. Triangle having only one
angle bigger than 90 degree, called
triangle.
Obtuse
516. Write the Pythagorean theorem.
517. A polygon having 4 sides and 4 angles, known
as
. Quadrilateral
518. A polygon having 4 sides
and all are equal is called
(It is not necessary that there angles are also
equal). Rhombus
519. The above figure is not a
polygon since
.. (a) its angles are
not regular (b) it is not a closed
figure (3) no angle is 90° (b)
520. Above figure is not a polygon since
(a) it is not made of line segments (b) there
is only one angle (c) it is a circle (a)
521. The figures below (No.i
and No.ii) are the
.
Polygons. regular
(i) (ii)
522. No.i polygon is
. And No. ii
.
Pentagon,
Octagon
523. Triangle is also a
polygon. F/T True
524. The sum of the angles of a
quadrilateral is
degrees 360
525. Polygon has at least
.. sides (2,3,4)
526. These are the examples of
..
Quadrilateral polygons
527. Four-sides polygon having only one opposite
pair parallel called
.. trapezoid
528. The sum of all the four
angles of rhombus, square, rectangle or trapezoid is
degree. 360
529. Every rectangle is a parallelogram. F/T
True
530. Every parallelogram is a rectangle. F/T
False
531. Every square is a
parallelogram. F/T
True
532. Every parallelogram is a square. F/T
False
 533.
This figure is a
but
not rectangle. Parallelogram
534. Below is a figure of
. Pentagon.
(regular, irregular)
535. What is the sum of all its
five angles.
540 30 in
   536.
This is a
.. Rt Triangle
537. Hypotenuse is
.. than 40
perpendicular. in
(bigger, smaller)
538. Find out its perimeter.
120 in
539. This is a
.. theorem.
Pythagorean
540. Above are the examples of
Trapezoid
541. Parallelogram has
.. pairs of sides parallel. (two,
three, four)
542. A
. sided polygon is known as Pentagon. The sum
of all the angles of Pentagon is
.
degrees. Five, 540
543. A
.. sided polygon is
known as Hexagon. The sum of all the angles of a Hexagon is
degrees. Six, 720
544. A
.. sided polygon is
known as Heptagon. The sum of all the angles of a Heptagon is
degrees.
Seven, 900
545. A
.. sided polygon is
known as Octagon. The sum of all the angles of a Octagon is
degrees. Eight, 1080
546. Each angle of a regular
hexagon is
.. degree. 120
547. Each angle of a regular octagon
is
.. degree. 135
548. Check the unit
|
|
time
|
temperature
|
mass
|
length
|
volume
|
|
year
|
x
|
|
|
|
|
|
Fahrenheit
|
|
X
|
|
|
|
|
Liter
|
|
|
|
|
X
|
|
Century
|
x
|
|
|
|
|
|
Yard
|
|
|
|
x
|
|
|
Cm
|
|
|
|
x
|
|
|
Pint
|
|
|
|
|
x
|
|
Ounce
|
|
|
X
|
|
|
|
centigrade
|
|
X
|
|
|
|
|
Decimeter
|
|
|
|
x
|
|
|
Centigram
|
|
|
x
|
|
|
|
Feet
|
|
|
|
x
|
|
|
Kg
|
|
|
x
|
|
|
|
Gallon
|
|
|
|
|
X
|
|
Quart
|
|
|
|
|
x
|
|
Celsius
|
|
X
|
|
|
|
549. Measurement of three
angles of a Quadrilateral is 110, 65 and 80. What is the size of the fourth
one? 105
  550.
One angle of an Isosceles triangle is 100 degree. What is the size of other
two?
40 each
551. Name the angles. F
Vertical
angles R M
552. If angle R is 125 degree. D
 Measure all other angles.
55
 553.
One angle is given as 130°
130° Find all other
seven angles.
554. Area of a circle = 3.14 x r2
Note: r means
radius
555. One angle of a right angle
triangle is 18°
What size of the other is. 72
556. If the sum of two angles
is 90°, they are called
angles. Complementary
557. If the sum of two angles
is 180 , they are called
.. angles. Supplementary
558. Supplementary angle of 34
degree is acute or obtuse.
Obtuse
559. Side of a Equilateral
triangle is 3.2 cm long. What is its perimeter? 6.9
560. Width of a rectangle is
one third of its length. If its length is 18 in, Determine the area and
perimeter of the rectangle.
108 sq in, 48 in
561. Area of a square is 64 sq
cm. Determine the size of its side and perimeter.
8
cm, 32 cm
562. What is the complementary
angle of 80°
10
563. What is the supplementary
angle of 80°
100
564. First side of a
parallelogram is 2.3 inch long and second side 1.4 inch long. What is the
perimeter? 7.4 in
565. Each angle of Rectangle or
Square measures
.. degree. 90
566. Circumference of a circle = 3.14 x diameter
F/T True
567. Diameter = double of the
. radius
568. Radius is 4.5 in, diameter is
in
569. What is the circumference?
 12.56
cm
570. What is the area?
12.56
571. Ali said, perimeter of
an radius
2 cm
isosceles is 35 square inch What mistake
did he do? 35
in
572. Area of a rectangle is 72
cm2 and width is
9 cm. What is the length? 8 cm
573. Perimeter of a
square-shape ground is 4.8 Furlong. What is its area? 1.44
  574.
121/700 χ 33/420 x 15 x 110
3630
575.What kind of polygon is it?
 trapezoid
576. Diameter of a circular
plate is 3 cm. Find the circumference and area.
9.42 cm and
7.065 sq cm
577. Check out the numbers:
|
|
Perfect
square
|
Perfect
cube
|
Composite
number
|
Prime
Number
|
Divisible by 6
|
|
1000
|
|
x
|
X
|
|
|
|
64
|
X
|
x
|
X
|
|
|
|
73
|
|
|
|
X
|
|
|
730
|
|
|
X
|
|
|
|
29
|
|
|
|
x
|
|
|
1110
|
|
|
X
|
|
|
|
2500
|
X
|
|
X
|
|
|
|
8
|
|
X
|
x
|
|
|
|
3
|
|
|
|
X
|
|
|
228
|
|
|
X
|
|
X
|
|
125
|
|
x
|
X
|
|
|
578. co-efficient is
., exponent
is
.. and base is
. b
-1, 1, b
579. Find the missing prime
number:
53,
59,
.., 67 61
580. Point out the factors
forms in the
following:
i) (23a
+ 1) (5b)
ii) 2.7 x 8 x 0.89
iii) -8 (4c 1) (c3 11)
iv) 2d + 3d + 3d2
v) (2) (3)
vi) 7k(1
+ k) + 2k
vii) 5a x 2b - 9
viii) 5a
(2b 9)
581. Simplify wherever you can:
A) 2m 12m 10m -20m
B) 2m3 12m4 10m
C) ab + ac + bc
D) ab + ab + ab 3ab
E) c2d cd + 6c2d
8cd2 + 4cd + 3cd2
3cd + 5c2d 5cd2
F) k + k2 + 34k4 4mk
8kp + 2k2
k +
3k2 + 34k4 4mk 8kp
582. Factorize: (where
possible)
i) -ab
+ b - b2c -b(a
1 + bc)
ii) 14d5km2 2.7.d.d.d.d.d.k.m.m
iii) ab - cd
iv) 4(k + 2a) - c3(k + 2a) + (k + 2a)
(k + 2a)(4 - c3 + 1)
v) 55 5 x 11
vi)
-4vk2 + 8vk3 - v4k2 -vk2(4 8k + v3)
vii) 2ab + 4b + ac + 6a2
583. Factorize: (Whichever
possible)
A) c3 c8 c +b3c5 c(c2 c7 1 + b3c4)
B) 4m(2b a3) + 2n(2b a3) - (2b a3)
(2b a3)(4m + 2n 1)
C) 5(k + 6a) + a(k + 6a) + (k 6a)
(k + 6a)(a 4)
D) 8a (k+m) 2a (k+m) + 4 (k+m)
2(3a + 2)(k + m)
E) a - b + c
F) -14a4bc3 21a2b2c2 + 70a3b4c
-7a2bc(2a2c3 + 3bc 10ab3)
G) 9a3 + 6a4 + 12a + 2b2
584. Value of Φ93 is
between:
a) 8 and 9 b)
9 and 10 c) 10 and 11
585. Value of Φ27 is
between:
a) 5 and 6 b) 6
and 7 c) 7 and 8
586. This is the example of
associative property of multiplication:
i) 12 x 13 = 13 x 12
ii) (a+b)+c = a+(b+c)
iii) (ab)c
= a(bc)
587. Divisibility:
|
|
By 7
|
By 11
|
By 13
|
|
10318
|
x
|
x
|
|
|
76019
|
|
|
|
|
1014
|
|
|
X
|
|
36400
|
x
|
|
X
|
|
207287
|
|
|
|
|
94985
|
|
x
|
|
588. One-third of a number is 8. What would be its half? 12
589. (6/3) χ (1/7) = ________
590. Find the Least
Common Multiple (LCM) of the following
two numbers: 36, 72 72
591. Is it necessary that all the
angles of Rhombus are right angles.
Math Obj 7
1. Joly earns $ 4500 per month and Maria $ 6000 per month.
What is the ratio between their salaries?
|
1
|
45 : 60
|
|
2
|
3 : 4 x
|
|
3
|
1 : 2
|
|
4
|
2 : 3
|
2. Kanza, Jily, Roma and Lisa started the business, they
agreed to share the monthly profit in the ratio 2:1:3:4. Who got the least
profit.
|
1
|
Kanza
|
|
2
|
Jily
x
|
|
3
|
Roma
|
|
4
|
Lisa
|
3. Kanza, Jily, Roma and Lisa started the business, they
agreed to share the monthly profit in the ratio 2:1:3:4. If Kanza gets $ 7000
at the end of the month, how much Lisa gets
|
1
|
$ 8,000
|
|
2
|
$ 3,500
|
|
3
|
$ 14,000
x
|
|
4
|
$ 10,000
|
4. Kanza, Jily, Roma and Lisa started the business, they
agreed to share the monthly profit in the ratio 15:60:5:45. If Lisa gets $ 2700
at the end of the month, how much Kanza gets.
|
1
|
$ 1,000
|
|
2
|
$ 3,500
|
|
3
|
$ 12,000
|
|
4
|
$ 9,00
x
|
5. Divide 300 breads in two men with ratio 1:2
|
1
|
150 and 150
|
|
2
|
100 and 200
x
|
|
3
|
100 and 300
|
|
4
|
75 and 225
|
6.Which ratio in the following is same as 3 : 5 : 6 : 4
|
1
|
180 : 300 : 360 :
240
x
|
|
2
|
9 : 15 : 18 : 14
|
|
3
|
5 : 7 : 8 : 6
|
|
4
|
30 : 50 : 80 : 40
|
7. Ratio between A and B is 1:2 and between B and C is 3:4. What
is the ratio among A, B and C
|
1
|
1 : 2 : 6
|
|
2
|
2 : 3 : 4
|
|
3
|
3 : 6 : 8
x
|
|
4
|
3 : 5 : 6
|
8. Least Common Multiple of 12, 6, 16
9. 15 CDs cost $ 60. What is the cost of one CD?
|
1
|
$ 5.00
|
|
2
|
$ 60.00
|
|
3
|
$ 12.00
|
|
4
|
$ 4.00
x
|
10. Joseph can keep 80 pens in 4 boxes. How many boxes he requires
to keep 20 pens?
|
1
|
0ne
x
|
|
2
|
Three
|
|
3
|
Two
|
|
4
|
Five
|
11. Choose the pair of all composite numbers.
|
1
|
25, 1000, 8, 7
|
|
2
|
432, 103, 338,
110
|
|
3
|
213, 105, 49, 77
x
|
|
4
|
111, 11, 222,
22
|
12. Shila writes ½ in first column, 1/4 in second column,
1/6 in third column, 1/8 in fourth column. What number will she write in fifth
column?
|
1
|
1/5
|
|
2
|
1/10 x
|
|
3
|
10/1
|
|
4
|
1/12
|
13. How many weeks are there in one year?
14. A fruit-seller had 99 watermelons on Mon. He sold one
third watermelons on Tues. On Wed he purchased 10 watermelons more. On Thurs 2
watermelons became stale. How many watermelons he has on Thurs.
|
1
|
Seventy five
|
|
2
|
Sixty
|
|
3
|
Eighty one
|
|
4
|
Seventy four
x
|
15. Which is the same?
|
1
|
Ratio 8 : 12
and Ratio 20 : 30 x
|
|
2
|
5 and
1/5
|
|
3
|
3.0 and
0.3
|
|
4
|
50% and
5%
|
16. Choose the fraction smaller than 1:
|
1
|
2/5
x
|
|
2
|
5/2
|
|
3
|
8/7
|
|
4
|
212/211
|
17. Cube root of 1000
|
1
|
100
|
|
2
|
10000
|
|
3
|
10
x
|
|
4
|
25
|
18. One labor can complete a work in 24 days. How many labors required to complete the same work in
8 days?
|
1
|
Three labors
x
|
|
2
|
Four labors
|
|
3
|
Two labors
|
|
4
|
Five labors
|
19. Square Root of 1210000
|
1
|
120
|
|
2
|
1200
|
|
3
|
110
|
|
4
|
1100
x
|
20. 1/3 + 1/3 + 1/3
is equal to:
21. Which decimal is bigger than 1
|
1
|
0.1
|
|
2
|
0.97
|
|
3
|
0.08
|
|
4
|
1.2
x
|
22. Which is perfect square
23. If x=2 and y=3, evaluate
x2 + y2
24. If n=4, m=5, evaluate m n + 2
25. Find quotient, if 35445 is divided by 7
|
1
|
563
|
|
2
|
6305
|
|
3
|
635
|
|
4
|
5063
x
|
26. Find the Greatest Common Factor of 44, 28, 60
27. A car travels 660 miles in 8 hours. What is the speed of
the car per hour?
|
1
|
660 x 8
|
|
2
|
660 χ 8 x
|
|
3
|
8 + 660
|
|
4
|
8 χ 660
|
28. Mention, not polygon
|
1
|
Parallelogram
|
|
2
|
Oval
x
|
|
3
|
Trapezoid
|
|
4
|
Equilateral
|
29. Mention, smaller
than 1
|
1
|
08.08
|
|
2
|
14/3
|
|
3
|
7/3
|
|
4
|
3/7
x
|
30. Price of an item is $ P, what is the price of 16 such
items.
|
1
|
16 + P
|
|
2
|
16P
x
|
|
3
|
P + 16
|
|
4
|
16 χ P
|
31. John had B dollars in his bank account. He
deposited 2B dollars yesterday, then he withdrew C dollars today. What is his
balance account now?
|
1
|
B x 2B χ C
|
|
2
|
3B C
x
|
|
3
|
2B + B + C
|
|
4
|
2BC
|
32. 6 bags weigh 24d + 30 gram. What is the
weight of one such bag?
|
1
|
9 gram
|
|
2
|
30 gram
|
|
3
|
5 + 4d gram
x
|
|
4
|
d + 5 gram
|
34. Speed of an aircraft is b miles per hour. In
how many hours can the aircraft travel p miles?
35.I think a number. I double it, then I multiply
it by 8
|
1
|
16x
x
|
|
2
|
8x
|
|
3
|
2x + 16
|
|
4
|
2x + 8
|
36. Sum of a number and its half is 20
|
1
|
1/2x = 20
|
|
2
|
2x = 20
|
|
3
|
2x + x = 20
|
|
4
|
x + x/2 = 20
x
|
37. Difference of two numbers is 100
|
1
|
2A = 100
|
|
2
|
A B = 100 x
|
|
3
|
2A + 2B = 100
|
|
4
|
3B = 100
|
38. I had X dollars. My friend had Y dollars. I
gave P dollars to my friend. How much he has now?
|
1
|
X + P
|
|
2
|
Y + P
x
|
|
3
|
X + Y
|
|
4
|
X P
|
39. I had X dollars. My friend had Y dollars. I
gave P dollars to my friend. How much I have now?
|
1
|
X + P
|
|
2
|
X Y
|
|
3
|
X + Y
|
|
4
|
X P
x
|
|
