EduSahara™ Worksheet

Question 1

1.

The smallest number by which 2700 must be divided so that the quotient is a perfect square is?

(i)

0
(ii)

4
(iii)

3
(iv)

5
(v)

2

Question 2

2.

Find the smallest 3 digit number which is a perfect square?

(i)

97
(ii)

103
(iii)

101
(iv)

99
(v)

100

Question 3

3.

The smallest number by which 125 must be multiplied so that the product is a perfect square is?

(i)

4
(ii)

8
(iii)

3
(iv)

6
(v)

5

Question 4

4.

How many digits are there in the square root of 255025?

(i)

0
(ii)

2
(iii)

6
(iv)

3
(v)

4

Question 5

5.

The solution of
√

14
lies between

(i)

5 and 6
(ii)

2 and 3
(iii)

1 and 2
(iv)

4 and 5
(v)

3 and 4

Question 6

6.

Find the least number that must be subtracted from 967 to get a perfect square?

(i)

7
(ii)

9
(iii)

5
(iv)

3
(v)

6

Question 7

7.

(i)

0.78
(ii)

7.8
(iii)

0.08
(iv)

8.78
(v)

2.78

Question 8

8.

If a number has 4 zeros at the end, its square has how many zeros?

(i)

7
(ii)

9
(iii)

8
(iv)

11
(v)

6

Question 9

9.

Find the smallest 4 digit number which is a perfect square?

(i)

1026
(ii)

1023
(iii)

1024
(iv)

1022
(v)

1025

Question 10

10.

(i)

8.8
(ii)

6.8
(iii)

68
(iv)

0.7
(v)

4.8

Question 11

11.

Find the square root of
76.90

(i)

8.77
(ii)

7.77
(iii)

10.77
(iv)

9.77
(v)

6.77

Question 12

12.

Find the least number that must be added to 1150 to get a perfect square?

(i)

9
(ii)

4
(iii)

6
(iv)

5
(v)

7

Question 13

13.

Which of the following is a perfect cube?

(i)

728
(ii)

343
(iii)

9
(iv)

218
(v)

24

Question 14

14.

Which of the following is a perfect square?

(i)

1156
(ii)

325
(iii)

838
(iv)

731
(v)

840

Question 15

15.

The solution of
√

12
lies between

(i)

3.4639 and 3.4640
(ii)

3.4642 and 3.4643
(iii)

3.4640 and 3.4641
(iv)

3.4643 and 3.4644
(v)

3.4641 and 3.4642

Question 16

16.

Find the
square root
of
1
16

(i)

1
4
(ii)

(
-1
4
)
(iii)

3
4
(iv)

1
6
(v)

1
2

Question 17

17.

Find the smallest perfect square which is divisible by each of the numbers 9,6,4

(i)

217
(ii)

38
(iii)

324
(iv)

36
(v)

72

Question 18

18.

Find the square root of
2920.7805

(i)

53.0442
(ii)

52.0442
(iii)

54.0442
(iv)

56.0442
(v)

55.0442

Question 19

19.

The solution of
√

3
lies between

(i)

1.730 and 1.731
(ii)

1.732 and 1.733
(iii)

1.733 and 1.734
(iv)

1.731 and 1.732
(v)

1.734 and 1.735

Question 20

20.

Find the value of
28 3
−
27 3

(i)

2272
(ii)

2270
(iii)

2269
(iv)

2268
(v)

2267

Question 21

21.

The smallest number by which 432 must be divided so that the quotient is a perfect cube is?

(i)

2
(ii)

1
(iii)

4
(iv)

0
(v)

3

Question 22

22.

(i)

822
(ii)

818
(iii)

82
(iv)

820
(v)

8200

Question 23

23.

Which of the following is not a perfect cube?

(i)

343
(ii)

1003
(iii)

729
(iv)

8
(v)

64

Question 24

24.

Find the greatest 2 digit number which is a perfect square?

(i)

82
(ii)

80
(iii)

81
(iv)

84
(v)

79

Question 25

25.

Find the cube of
10

(i)

1000
(ii)

100
(iii)

103
(iv)

1003
(v)

997

Assignment Key