EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Square Root and Cube Root
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
How many digits are there in the square root of 887364?
(i)
5
(ii)
3
(iii)
1
(iv)
2
(v)
4
Question
2
2.
Find the
cube root
of
-27
(i)
-4
(ii)
-3
(iii)
-6
(iv)
-1
(v)
-2
Question
3
3.
The solution of
√
14
lies between
(i)
3.73 and 3.74
(ii)
3.74 and 3.75
(iii)
3.75 and 3.76
(iv)
3.76 and 3.77
(v)
3.72 and 3.73
Question
4
4.
Find the smallest 3 digit number which is a perfect square?
(i)
99
(ii)
103
(iii)
101
(iv)
100
(v)
98
Question
5
5.
How many digits are there in the square root of 4761?
(i)
3
(ii)
(-1)
(iii)
1
(iv)
2
(v)
4
Question
6
6.
Find the least number that must be subtracted from 1608 to get a perfect square?
(i)
11
(ii)
9
(iii)
7
(iv)
6
(v)
8
Question
7
7.
If a number has 5 zeros at the end, its square has how many zeros?
(i)
9
(ii)
7
(iii)
12
(iv)
10
(v)
11
Question
8
8.
Which of the following is not a perfect cube?
(i)
729
(ii)
1003
(iii)
512
(iv)
343
(v)
27
Question
9
9.
Find the cube of
6
(i)
219
(ii)
213
(iii)
39
(iv)
36
(v)
216
Question
10
10.
Which of the following is a perfect cube?
(i)
7
(ii)
27
(iii)
515
(iv)
727
(v)
344
Question
11
11.
Find the smallest 4 digit number which is a perfect square?
(i)
1025
(ii)
1024
(iii)
1027
(iv)
1021
(v)
1023
Question
12
12.
Find the number of numbers between
8
2
and
9
2
(i)
13
(ii)
16
(iii)
18
(iv)
15
(v)
17
Question
13
13.
The solution of
√
10
lies between
(i)
3.160 and 3.161
(ii)
3.162 and 3.163
(iii)
3.163 and 3.164
(iv)
3.164 and 3.165
(v)
3.161 and 3.162
Question
14
14.
If
√
9216
=
96
,
find the value of
√
92.16
(i)
7.6
(ii)
11.6
(iii)
96
(iv)
1
(v)
9.6
Question
15
15.
Find the cube root of
4096
(i)
13
(ii)
259
(iii)
256
(iv)
19
(v)
16
Question
16
16.
The solution of
√
10
lies between
(i)
3.0 and 3.1
(ii)
3.3 and 3.4
(iii)
3.2 and 3.3
(iv)
2.9 and 3.0
(v)
3.1 and 3.2
Question
17
17.
Find the greatest 3 digit number which is a perfect square?
(i)
961
(ii)
958
(iii)
962
(iv)
964
(v)
960
Question
18
18.
Which of the following is not a perfect square?
(i)
4
(ii)
622
(iii)
1296
(iv)
1369
Question
19
19.
Find the smallest 2 digit number which is a perfect square?
(i)
13
(ii)
15
(iii)
16
(iv)
19
(v)
17
Question
20
20.
Find the smallest 5 digit number which is a perfect square?
(i)
10000
(ii)
9999
(iii)
10002
(iv)
10001
(v)
9997
Question
21
21.
Find the square root of
2548.8210
(i)
51.4858
(ii)
48.4858
(iii)
49.4858
(iv)
52.4858
(v)
50.4858
Question
22
22.
Find the square root of
551.750
(i)
21.489
(ii)
25.489
(iii)
24.489
(iv)
22.489
(v)
23.489
Question
23
23.
The smallest number by which 2048 must be multiplied so that the product is a perfect cube is?
(i)
2
(ii)
0
(iii)
4
(iv)
1
(v)
3
Question
24
24.
Find the smallest perfect square which is divisible by each of the numbers 15,16,4
(i)
7200
(ii)
3602
(iii)
3841
(iv)
3600
Question
25
25.
If
√
1936
=
44
,
find the value of
√
19360000
(i)
4402
(ii)
4400
(iii)
44000
(iv)
440
(v)
4398
Assignment Key
1) (ii)
2) (ii)
3) (ii)
4) (iv)
5) (iv)
6) (v)
7) (iv)
8) (ii)
9) (v)
10) (ii)
11) (ii)
12) (ii)
13) (ii)
14) (v)
15) (v)
16) (v)
17) (i)
18) (ii)
19) (iii)
20) (i)
21) (v)
22) (v)
23) (i)
24) (iv)
25) (ii)
