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 5929?
(i)
3
(ii)
0
(iii)
2
(iv)
5
(v)
1
Question
2
2.
Find the
cube root
of
-125
(i)
-6
(ii)
-4
(iii)
-5
(iv)
-2
(v)
-7
Question
3
3.
Which of the following is not a perfect square?
(i)
484
(ii)
1681
(iii)
2115
(iv)
49
(v)
784
Question
4
4.
Find the value of
22
3
−
21
3
(i)
1389
(ii)
1386
(iii)
1384
(iv)
1388
(v)
1387
Question
5
5.
Find the cube root of
2744
(i)
11
(ii)
14
(iii)
17
(iv)
199
(v)
196
Question
6
6.
The solution of
√
6
lies between
(i)
2.6 and 2.7
(ii)
2.5 and 2.6
(iii)
2.4 and 2.5
(iv)
2.2 and 2.3
(v)
2.3 and 2.4
Question
7
7.
Find the
square root
of
4
(i)
2
(ii)
3
(iii)
0
(iv)
5
(v)
1
Question
8
8.
Find the least number that must be added to 669 to get a perfect square?
(i)
9
(ii)
7
(iii)
8
(iv)
5
(v)
6
Question
9
9.
The solution of
√
10
lies between
(i)
3.162 and 3.163
(ii)
3.164 and 3.165
(iii)
3.160 and 3.161
(iv)
3.161 and 3.162
(v)
3.163 and 3.164
Question
10
10.
How many digits are there in the square root of 363609?
(i)
0
(ii)
4
(iii)
2
(iv)
6
(v)
3
Question
11
11.
Find the
square root
of
9
16
(i)
3
4
(ii)
5
4
(iii)
3
2
(iv)
1
4
(v)
1
2
Question
12
12.
Find the square root of
362.800
(i)
18.047
(ii)
19.047
(iii)
20.047
(iv)
21.047
(v)
17.047
Question
13
13.
Find the smallest 4 digit number which is a perfect square?
(i)
1021
(ii)
1025
(iii)
1026
(iv)
1024
(v)
1023
Question
14
14.
Find the cube of
28
(i)
787
(ii)
21952
(iii)
21955
(iv)
21949
(v)
784
Question
15
15.
Find the smallest 5 digit number which is a perfect square?
(i)
10001
(ii)
9998
(iii)
9999
(iv)
10003
(v)
10000
Question
16
16.
Find the smallest 2 digit number which is a perfect square?
(i)
17
(ii)
13
(iii)
18
(iv)
15
(v)
16
Question
17
17.
Which of the following is a perfect square?
(i)
1598
(ii)
678
(iii)
625
(iv)
1370
(v)
1443
Question
18
18.
The smallest number by which 405 must be multiplied so that the product is a perfect square is?
(i)
5
(ii)
6
(iii)
4
(iv)
2
(v)
7
Question
19
19.
Find the smallest perfect square which is divisible by each of the numbers 10,18,9
(i)
1800
(ii)
1621
(iii)
902
(iv)
900
Question
20
20.
Find the least number that must be subtracted from 683 to get a perfect square?
(i)
9
(ii)
8
(iii)
6
(iv)
7
(v)
5
Question
21
21.
Find the greatest 4 digit number which is a perfect square?
(i)
9802
(ii)
9799
(iii)
9803
(iv)
9800
(v)
9801
Question
22
22.
If
√
2401
=
49
,
find the value of
√
24010000
(i)
490
(ii)
49000
(iii)
4902
(iv)
4900
(v)
4898
Question
23
23.
Which of the following is a perfect cube?
(i)
30
(ii)
997
(iii)
729
(iv)
513
(v)
63
Question
24
24.
The solution of
√
18
lies between
(i)
6 and 7
(ii)
2 and 3
(iii)
3 and 4
(iv)
4 and 5
(v)
5 and 6
Question
25
25.
Find the square root of
84.20
(i)
7.18
(ii)
11.18
(iii)
9.18
(iv)
10.18
(v)
8.18
Assignment Key
1) (iii)
2) (iii)
3) (iii)
4) (v)
5) (ii)
6) (iii)
7) (i)
8) (ii)
9) (i)
10) (v)
11) (i)
12) (ii)
13) (iv)
14) (ii)
15) (v)
16) (v)
17) (iii)
18) (i)
19) (iv)
20) (iv)
21) (v)
22) (iv)
23) (iii)
24) (iv)
25) (iii)
