EduSahara™ Worksheet

Question 1

1.

Which of the following is a perfect square?

(i)

1441
(ii)

787
(iii)

840
(iv)

962
(v)

784

Question 2

2.

Which of the following is not a perfect square?

(i)

958
(ii)

2116
(iii)

900
(iv)

576
(v)

1764

Question 3

3.

What is the unit place digit in the square of 47?

(i)

5
(ii)

9
(iii)

1
(iv)

4
(v)

3

Question 4

4.

If a number has 3 zeros at the end, its square has how many zeros?

(i)

6
(ii)

7
(iii)

5
(iv)

8
(v)

3

Question 5

5.

Find the number of numbers between
4 2
and
5 2

(i)

9
(ii)

7
(iii)

8
(iv)

5
(v)

11

Question 6

6.

How many digits are there in the square root of 1369?

(i)

(-1)
(ii)

3
(iii)

1
(iv)

5
(v)

2

Question 7

7.

How many digits are there in the square root of 521284?

(i)

3
(ii)

5
(iii)

2
(iv)

1
(v)

4

Question 8

8.

Find the least number that must be subtracted from 293 to get a perfect square?

(i)

4
(ii)

7
(iii)

3
(iv)

5
(v)

1

Question 9

9.

Find the least number that must be added to 116 to get a perfect square?

(i)

8
(ii)

6
(iii)

4
(iv)

5
(v)

3

Question 10

10.

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

(i)

16
(ii)

17
(iii)

18
(iv)

15
(v)

13

Question 11

11.

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

(i)

84
(ii)

78
(iii)

82
(iv)

81
(v)

80

Question 12

12.

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

(i)

101
(ii)

102
(iii)

99
(iv)

100
(v)

97

Question 13

13.

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

(i)

959
(ii)

964
(iii)

961
(iv)

962
(v)

960

Question 14

14.

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

(i)

1022
(ii)

1023
(iii)

1025
(iv)

1024
(v)

1026

Question 15

15.

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

(i)

9801
(ii)

9799
(iii)

9804
(iv)

9800
(v)

9802

Question 16

16.

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

(i)

10003
(ii)

9997
(iii)

10000
(iv)

10001
(v)

9999

Question 17

17.

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

(i)

99859
(ii)

99853
(iii)

99855
(iv)

99857
(v)

99856

Question 18

18.

Find the square root of
65.88

(i)

10.12
(ii)

9.12
(iii)

6.12
(iv)

7.12
(v)

8.12

Question 19

19.

Find the square root of
690.600

(i)

25.279
(ii)

24.279
(iii)

28.279
(iv)

27.279
(v)

26.279

Question 20

20.

Find the square root of
7180.5900

(i)

85.7384
(ii)

86.7384
(iii)

84.7384
(iv)

82.7384
(v)

83.7384

Question 21

21.

The smallest number by which 507 must be multiplied so that the product is a perfect square is?

(i)

5
(ii)

3
(iii)

2
(iv)

4
(v)

0

Question 22

22.

The smallest number by which 648 must be divided so that the quotient is a perfect square is?

(i)

4
(ii)

(-1)
(iii)

2
(iv)

3
(v)

1

Question 23

23.

Which of the following is a perfect square?

(i)

122
(ii)

255
(iii)

25
(iv)

286
(v)

1446

Question 24

24.

Which of the following is not a perfect square?

(i)

441
(ii)

196
(iii)

49
(iv)

1848
(v)

1369

Question 25

25.

What is the unit place digit in the square of 5?

(i)

5
(ii)

3
(iii)

0
(iv)

1
(v)

2

Question 26

26.

If a number has 1 zeros at the end, its square has how many zeros?

(i)

1
(ii)

(-1)
(iii)

4
(iv)

2
(v)

3

Question 27

27.

Find the number of numbers between
2 2
and
3 2

(i)

7
(ii)

3
(iii)

4
(iv)

1
(v)

5

Question 28

28.

How many digits are there in the square root of 2601?

(i)

1
(ii)

0
(iii)

2
(iv)

5
(v)

3

Question 29

29.

How many digits are there in the square root of 48841?

(i)

2
(ii)

6
(iii)

4
(iv)

3
(v)

1

Question 30

30.

Find the least number that must be subtracted from 110 to get a perfect square?

(i)

8
(ii)

9
(iii)

10
(iv)

11
(v)

13

Question 31

31.

Find the least number that must be added to 719 to get a perfect square?

(i)

9
(ii)

7
(iii)

10
(iv)

11
(v)

13

Question 32

32.

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

(i)

15
(ii)

13
(iii)

16
(iv)

17
(v)

18

Question 33

33.

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

(i)

82
(ii)

81
(iii)

79
(iv)

83
(v)

80

Question 34

34.

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

(i)

99
(ii)

103
(iii)

97
(iv)

101
(v)

100

Question 35

35.

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

(i)

958
(ii)

962
(iii)

963
(iv)

961
(v)

960

Question 36

36.

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

(i)

1024
(ii)

1023
(iii)

1026
(iv)

1022
(v)

1025

Question 37

37.

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

(i)

9801
(ii)

9799
(iii)

9804
(iv)

9802
(v)

9800

Question 38

38.

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

(i)

10000
(ii)

10003
(iii)

9998
(iv)

9999
(v)

10001

Question 39

39.

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

(i)

99857
(ii)

99856
(iii)

99858
(iv)

99855
(v)

99854

Question 40

40.

Find the square root of
4.20

(i)

1.05
(ii)

3.05
(iii)

4.05
(iv)

2.05
(v)

0.05

Question 41

41.

Find the square root of
529.261

(i)

23.006
(ii)

22.006
(iii)

21.006
(iv)

24.006
(v)

25.006

Question 42

42.

Find the square root of
5655.6500

(i)

74.2041
(ii)

77.2041
(iii)

73.2041
(iv)

75.2041
(v)

76.2041

Question 43

43.

The smallest number by which 722 must be multiplied so that the product is a perfect square is?

(i)

1
(ii)

2
(iii)

0
(iv)

3
(v)

4

Question 44

44.

The smallest number by which 6125 must be divided so that the quotient is a perfect square is?

(i)

3
(ii)

4
(iii)

7
(iv)

6
(v)

5

Assignment Key