EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Square Root and Cube Root
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
If
√
7921
=
89
,
find the value of
√
0.7921
(i)
0.89
(ii)
8.89
(iii)
0.09
(iv)
2.89
(v)
8.9
Question
2
2.
If
√
4096
=
64
,
find the value of
√
40960000
(i)
640
(ii)
64000
(iii)
6402
(iv)
6400
(v)
6398
Question
3
3.
Find the value of
9
3
+
8
3
(i)
1244
(ii)
1241
(iii)
1242
(iv)
1239
(v)
1240
Question
4
4.
Find the least number that must be added to 1654 to get a perfect square?
(i)
30
(ii)
26
(iii)
27
(iv)
28
(v)
24
Question
5
5.
The solution of
√
19
lies between
(i)
4.360 and 4.361
(ii)
4.356 and 4.357
(iii)
4.358 and 4.359
(iv)
4.359 and 4.360
(v)
4.357 and 4.358
Question
6
6.
Find the smallest 3 digit number which is a perfect square?
(i)
103
(ii)
98
(iii)
99
(iv)
100
(v)
101
Question
7
7.
If a number has 5 zeros at the end, its square has how many zeros?
(i)
10
(ii)
7
(iii)
9
(iv)
12
(v)
11
Question
8
8.
Find the number of numbers between
16
2
and
17
2
(i)
32
(ii)
34
(iii)
33
(iv)
30
(v)
31
Question
9
9.
If
√
8649
=
93
,
find the value of
√
864900
(i)
928
(ii)
93
(iii)
930
(iv)
9300
(v)
932
Question
10
10.
Which of the following is not a perfect cube?
(i)
216
(ii)
67
(iii)
125
(iv)
512
(v)
343
Question
11
11.
Find the greatest 5 digit number which is a perfect square?
(i)
99853
(ii)
99855
(iii)
99857
(iv)
99858
(v)
99856
Question
12
12.
If
√
8649
=
93
,
find the value of
√
86.49
(i)
0.9
(ii)
11.3
(iii)
93
(iv)
9.3
(v)
7.3
Question
13
13.
Find the smallest 5 digit number which is a perfect square?
(i)
10001
(ii)
10002
(iii)
9999
(iv)
10000
(v)
9998
Question
14
14.
Find the cube of
15
(i)
3372
(ii)
3375
(iii)
3378
(iv)
225
(v)
228
Question
15
15.
Find the greatest 3 digit number which is a perfect square?
(i)
963
(ii)
958
(iii)
961
(iv)
962
(v)
960
Question
16
16.
Find the
cube root
of
-27
(i)
-5
(ii)
0
(iii)
-4
(iv)
-2
(v)
-3
Question
17
17.
Find the cube root of
5832
(i)
18
(ii)
324
(iii)
15
(iv)
327
(v)
21
Question
18
18.
The smallest number by which 2000 must be divided so that the quotient is a perfect cube is?
(i)
2
(ii)
1
(iii)
4
(iv)
0
(v)
3
Question
19
19.
Find the square root of
908.850
(i)
28.147
(ii)
32.147
(iii)
31.147
(iv)
30.147
(v)
29.147
Question
20
20.
Find the square root of
2476.0500
(i)
49.7599
(ii)
50.7599
(iii)
48.7599
(iv)
47.7599
(v)
51.7599
Question
21
21.
Find the smallest 2 digit number which is a perfect square?
(i)
17
(ii)
13
(iii)
15
(iv)
16
(v)
19
Question
22
22.
Find the value of
22
3
−
21
3
(i)
1384
(ii)
1388
(iii)
1387
(iv)
1390
(v)
1386
Question
23
23.
Find the greatest 2 digit number which is a perfect square?
(i)
84
(ii)
81
(iii)
80
(iv)
78
(v)
82
Question
24
24.
Which of the following is a perfect square?
(i)
2025
(ii)
402
(iii)
2399
(iv)
675
(v)
1850
Question
25
25.
How many digits are there in the square root of 574564?
(i)
0
(ii)
2
(iii)
5
(iv)
4
(v)
3
Assignment Key
1) (i)
2) (iv)
3) (ii)
4) (iii)
5) (iii)
6) (iv)
7) (i)
8) (i)
9) (iii)
10) (ii)
11) (v)
12) (iv)
13) (iv)
14) (ii)
15) (iii)
16) (v)
17) (i)
18) (i)
19) (iv)
20) (i)
21) (iv)
22) (iii)
23) (ii)
24) (i)
25) (v)
