EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Square Root and Cube Root
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
Find the smallest 3 digit number which is a perfect square?
(i)
98
(ii)
100
(iii)
99
(iv)
101
(v)
103
Question
2
2.
The solution of
√
19
lies between
(i)
5 and 6
(ii)
2 and 3
(iii)
3 and 4
(iv)
6 and 7
(v)
4 and 5
Question
3
3.
What is the unit place digit in the square of 36?
(i)
1
(ii)
5
(iii)
7
(iv)
6
(v)
2
Question
4
4.
Find the cube of
14
(i)
2744
(ii)
199
(iii)
2747
(iv)
196
(v)
2741
Question
5
5.
Find the smallest 5 digit number which is a perfect square?
(i)
10002
(ii)
9997
(iii)
10001
(iv)
10000
(v)
9999
Question
6
6.
The solution of
√
11
lies between
(i)
3.1 and 3.2
(ii)
3.2 and 3.3
(iii)
3.3 and 3.4
(iv)
3.5 and 3.6
(v)
3.4 and 3.5
Question
7
7.
Find the greatest 5 digit number which is a perfect square?
(i)
99853
(ii)
99855
(iii)
99858
(iv)
99856
(v)
99857
Question
8
8.
The solution of
√
15
lies between
(i)
3.873 and 3.874
(ii)
3.874 and 3.875
(iii)
3.872 and 3.873
(iv)
3.871 and 3.872
(v)
3.870 and 3.871
Question
9
9.
Which of the following is not a perfect square?
(i)
1600
(ii)
2208
(iii)
225
(iv)
2025
(v)
625
Question
10
10.
The smallest number by which 500 must be multiplied so that the product is a perfect cube is?
(i)
3
(ii)
0
(iii)
1
(iv)
2
(v)
4
Question
11
11.
If
√
324
=
18
,
find the value of
√
32400
(i)
178
(ii)
1800
(iii)
180
(iv)
182
(v)
18
Question
12
12.
Which of the following is not a perfect cube?
(i)
219
(ii)
729
(iii)
1000
(iv)
343
(v)
27
Question
13
13.
Find the smallest perfect square which is divisible by each of the numbers 9,8,4
(i)
144
(ii)
288
(iii)
146
(iv)
577
(v)
648
Question
14
14.
How many digits are there in the square root of 224676?
(i)
5
(ii)
2
(iii)
3
(iv)
4
(v)
1
Question
15
15.
Find the value of
19
3
−
18
3
(i)
1026
(ii)
1029
(iii)
1028
(iv)
1024
(v)
1027
Question
16
16.
Find the number of numbers between
7
2
and
8
2
(i)
12
(ii)
17
(iii)
13
(iv)
15
(v)
14
Question
17
17.
Find the value of
24
3
+
23
3
(i)
25990
(ii)
25988
(iii)
25992
(iv)
25991
(v)
25993
Question
18
18.
Find the greatest 3 digit number which is a perfect square?
(i)
961
(ii)
958
(iii)
964
(iv)
960
(v)
962
Question
19
19.
The solution of
√
8
lies between
(i)
2.84 and 2.85
(ii)
2.83 and 2.84
(iii)
2.82 and 2.83
(iv)
2.81 and 2.82
(v)
2.80 and 2.81
Question
20
20.
The smallest number by which 1352 must be divided so that the quotient is a perfect square is?
(i)
2
(ii)
3
(iii)
1
(iv)
5
(v)
(-1)
Question
21
21.
Find the greatest 2 digit number which is a perfect square?
(i)
81
(ii)
83
(iii)
80
(iv)
78
(v)
82
Question
22
22.
Which of the following is a perfect cube?
(i)
122
(ii)
344
(iii)
26
(iv)
8
(v)
219
Question
23
23.
If
√
1024
=
32
,
find the value of
√
10.24
(i)
3.2
(ii)
0.3
(iii)
1.2
(iv)
5.2
(v)
32
Question
24
24.
The smallest number by which 2000 must be divided so that the quotient is a perfect cube is?
(i)
3
(ii)
1
(iii)
2
(iv)
4
(v)
0
Question
25
25.
Find the
cube root
of
(
-27
125
)
(i)
(
-3
7
)
(ii)
-1
(iii)
(
-3
5
)
(iv)
(
-1
5
)
Assignment Key
1) (ii)
2) (v)
3) (iv)
4) (i)
5) (iv)
6) (iii)
7) (iv)
8) (iii)
9) (ii)
10) (iv)
11) (iii)
12) (i)
13) (i)
14) (iii)
15) (v)
16) (v)
17) (iv)
18) (i)
19) (iii)
20) (i)
21) (i)
22) (iv)
23) (i)
24) (iii)
25) (iii)
