EduSahara™ Worksheet

Question 1

1.

Which of the following is a perfect square?

(i)

360
(ii)

573
(iii)

529
(iv)

442
(v)

1683

Question 2

2.

Which of the following is not a perfect square?

(i)

2398
(ii)

784
(iii)

2401
(iv)

729
(v)

400

Question 3

3.

Find the number of numbers between
16 2
and
17 2

(i)

29
(ii)

33
(iii)

32
(iv)

34
(v)

31

Question 4

4.

Find the smallest perfect square which is divisible by each of the numbers 4,18,14

(i)

1764
(ii)

3528
(iii)

4537
(iv)

1008
(v)

1766

Question 5

5.

How many digits are there in the square root of 4356?

(i)

3
(ii)

5
(iii)

2
(iv)

(-1)
(v)

1

Question 6

6.

How many digits are there in the square root of 874225?

(i)

2
(ii)

4
(iii)

3
(iv)

5
(v)

1

Question 7

7.

Find the least number that must be subtracted from 1980 to get a perfect square?

(i)

47
(ii)

41
(iii)

45
(iv)

43
(v)

44

Question 8

8.

Find the least number that must be added to 1017 to get a perfect square?

(i)

9
(ii)

6
(iii)

7
(iv)

4
(v)

8

Question 9

9.

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

(i)

14
(ii)

15
(iii)

19
(iv)

16
(v)

17

Question 10

10.

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

(i)

80
(ii)

81
(iii)

82
(iv)

83
(v)

78

Question 11

11.

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

(i)

101
(ii)

103
(iii)

100
(iv)

99
(v)

97

Question 12

12.

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

(i)

962
(ii)

960
(iii)

959
(iv)

961
(v)

964

Question 13

13.

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

(i)

1022
(ii)

1024
(iii)

1025
(iv)

1026
(v)

1023

Question 14

14.

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

(i)

9801
(ii)

9799
(iii)

9800
(iv)

9802
(v)

9803

Question 15

15.

Find the smallest 5 digit number which is a perfect square?

(i)

9999
(ii)

10000
(iii)

10002
(iv)

9998
(v)

10001

Question 16

16.

Find the greatest 5 digit number which is a perfect square?

(i)

99859
(ii)

99854
(iii)

99856
(iv)

99857
(v)

99855

Question 17

17.

Express
27 2
as the sum of two consecutive integers

(i)

364 + 365
(ii)

366 + 363
(iii)

365 + 366
(iv)

362 + 367
(v)

363 + 364

Question 18

18.

The smallest number by which 8 must be multiplied so that the product is a perfect square is?

(i)

1
(ii)

3
(iii)

4
(iv)

0
(v)

2

Question 19

19.

The smallest number by which 21296 must be divided so that the quotient is a perfect square is?

(i)

12
(ii)

13
(iii)

11
(iv)

10
(v)

8

Question 20

20.

What is the unit place digit in the square of 9?

(i)

6
(ii)

4
(iii)

9
(iv)

0
(v)

1

Question 21

21.

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

(i)

9
(ii)

6
(iii)

11
(iv)

7
(v)

8

Question 22

22.

Find the
square root
of
4

(i)

1
(ii)

-1
(iii)

3
(iv)

5
(v)

2

Question 23

23.

Find the
square root
of
9
4

(i)

2
(ii)

5
4
(iii)

1
2
(iv)

5
2
(v)

3
2

Question 24

24.

(i)

290
(ii)

2898
(iii)

2900
(iv)

2902
(v)

29000

Question 25

25.

(i)

818
(ii)

8200
(iii)

82
(iv)

820
(v)

822

Question 26

26.

(i)

10.5
(ii)

6.5
(iii)

0.8
(iv)

85
(v)

8.5

Question 27

27.

(i)

3.1
(ii)

8.31
(iii)

0.03
(iv)

2.31
(v)

0.31

Assignment Key