EduSahara™ Worksheet

Question 1

1.

Which of the following is a perfect square?

(i)

784
(ii)

530
(iii)

1086
(iv)

843
(v)

728

Question 2

2.

Which of the following is not a perfect square?

(i)

400
(ii)

324
(iii)

25
(iv)

2025
(v)

98

Question 3

3.

What is the unit place digit in the square of 36?

(i)

9
(ii)

3
(iii)

6
(iv)

5
(v)

7

Question 4

4.

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

(i)

7
(ii)

6
(iii)

4
(iv)

9
(v)

5

Question 5

5.

Find the number of numbers between
12 2
and
13 2

(i)

23
(ii)

24
(iii)

25
(iv)

27
(v)

21

Question 6

6.

How many digits are there in the square root of 256?

(i)

(-1)
(ii)

2
(iii)

3
(iv)

4
(v)

1

Question 7

7.

How many digits are there in the square root of 447561?

(i)

4
(ii)

0
(iii)

2
(iv)

5
(v)

3

Question 8

8.

Find the least number that must be subtracted from 795 to get a perfect square?

(i)

12
(ii)

11
(iii)

8
(iv)

10
(v)

13

Question 9

9.

Find the least number that must be added to 1289 to get a perfect square?

(i)

6
(ii)

8
(iii)

7
(iv)

9
(v)

4

Question 10

10.

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

(i)

17
(ii)

13
(iii)

18
(iv)

16
(v)

15

Question 11

11.

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

(i)

82
(ii)

80
(iii)

81
(iv)

83
(v)

79

Question 12

12.

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

(i)

99
(ii)

101
(iii)

102
(iv)

100
(v)

98

Question 13

13.

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

(i)

963
(ii)

958
(iii)

961
(iv)

960
(v)

962

Question 14

14.

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

(i)

1022
(ii)

1025
(iii)

1026
(iv)

1023
(v)

1024

Question 15

15.

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

(i)

9803
(ii)

9802
(iii)

9799
(iv)

9800
(v)

9801

Question 16

16.

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

(i)

10003
(ii)

10001
(iii)

10000
(iv)

9997
(v)

9999

Question 17

17.

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

(i)

99857
(ii)

99859
(iii)

99856
(iv)

99854
(v)

99855

Question 18

18.

Find the square root of
15.30

(i)

3.91
(ii)

1.91
(iii)

2.91
(iv)

5.91
(v)

4.91

Question 19

19.

Find the square root of
474.250

(i)

21.777
(ii)

20.777
(iii)

23.777
(iv)

22.777
(v)

19.777

Question 20

20.

Find the square root of
1723.5520

(i)

40.5157
(ii)

39.5157
(iii)

42.5157
(iv)

43.5157
(v)

41.5157

Question 21

21.

The smallest number by which 76 must be multiplied so that the product is a perfect square is?

(i)

18
(ii)

20
(iii)

16
(iv)

22
(v)

19

Question 22

22.

The smallest number by which 19652 must be divided so that the quotient is a perfect square is?

(i)

18
(ii)

16
(iii)

17
(iv)

14
(v)

19

Question 23

23.

Which of the following is a perfect square?

(i)

167
(ii)

18
(iii)

1522
(iv)

1935
(v)

25

Question 24

24.

Which of the following is not a perfect square?

(i)

484
(ii)

573
(iii)

169
(iv)

1849
(v)

2209

Question 25

25.

What is the unit place digit in the square of 33?

(i)

1
(ii)

6
(iii)

9
(iv)

7
(v)

8

Question 26

26.

If a number has 5 zeros at the end, its square has how many zeros?

(i)

10
(ii)

12
(iii)

8
(iv)

9
(v)

11

Question 27

27.

Find the number of numbers between
11 2
and
12 2

(i)

19
(ii)

21
(iii)

23
(iv)

22
(v)

24

Question 28

28.

How many digits are there in the square root of 3025?

(i)

2
(ii)

4
(iii)

0
(iv)

1
(v)

3

Question 29

29.

How many digits are there in the square root of 498436?

(i)

6
(ii)

4
(iii)

3
(iv)

2
(v)

0

Question 30

30.

Find the least number that must be subtracted from 1859 to get a perfect square?

(i)

8
(ii)

9
(iii)

12
(iv)

11
(v)

10

Question 31

31.

Find the least number that must be added to 813 to get a perfect square?

(i)

29
(ii)

30
(iii)

25
(iv)

28
(v)

27

Question 32

32.

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

(i)

13
(ii)

16
(iii)

17
(iv)

15
(v)

19

Question 33

33.

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

(i)

82
(ii)

81
(iii)

80
(iv)

78
(v)

83

Question 34

34.

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

(i)

102
(ii)

97
(iii)

101
(iv)

99
(v)

100

Question 35

35.

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

(i)

961
(ii)

962
(iii)

963
(iv)

959
(v)

960

Question 36

36.

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

(i)

1024
(ii)

1023
(iii)

1021
(iv)

1025
(v)

1026

Question 37

37.

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

(i)

9802
(ii)

9799
(iii)

9801
(iv)

9800
(v)

9803

Question 38

38.

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

(i)

10001
(ii)

9997
(iii)

10003
(iv)

10000
(v)

9999

Question 39

39.

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

(i)

99857
(ii)

99858
(iii)

99856
(iv)

99855
(v)

99854

Question 40

40.

Find the square root of
32.55

(i)

7.71
(ii)

4.71
(iii)

3.71
(iv)

5.71
(v)

6.71

Question 41

41.

Find the square root of
562.610

(i)

22.719
(ii)

21.719
(iii)

25.719
(iv)

24.719
(v)

23.719

Question 42

42.

Find the square root of
8058.4000

(i)

88.7686
(ii)

90.7686
(iii)

89.7686
(iv)

87.7686
(v)

91.7686

Question 43

43.

The smallest number by which 27 must be multiplied so that the product is a perfect square is?

(i)

1
(ii)

4
(iii)

2
(iv)

3
(v)

6

Question 44

44.

The smallest number by which 6912 must be divided so that the quotient is a perfect square is?

(i)

1
(ii)

5
(iii)

3
(iv)

2
(v)

4

Assignment Key