EduSahara™ Worksheet

Question 1

1.

Which of the following is a perfect square?

(i)

1441
(ii)

289
(iii)

168
(iv)

2118
(v)

65

Question 2

2.

Which of the following is not a perfect square?

(i)

441
(ii)

622
(iii)

1024
(iv)

1156
(v)

361

Question 3

3.

What is the unit place digit in the square of 28?

(i)

0
(ii)

6
(iii)

4
(iv)

3
(v)

9

Question 4

4.

If a number has 2 zeros at the end, its square has how many zeros?

(i)

6
(ii)

5
(iii)

2
(iv)

3
(v)

4

Question 5

5.

Find the number of numbers between
5 2
and
6 2

(i)

9
(ii)

11
(iii)

8
(iv)

12
(v)

10

Question 6

6.

How many digits are there in the square root of 196?

(i)

3
(ii)

0
(iii)

5
(iv)

2
(v)

1

Question 7

7.

How many digits are there in the square root of 505521?

(i)

2
(ii)

5
(iii)

1
(iv)

4
(v)

3

Question 8

8.

Find the least number that must be subtracted from 2240 to get a perfect square?

(i)

33
(ii)

32
(iii)

31
(iv)

29
(v)

30

Question 9

9.

Find the least number that must be added to 1432 to get a perfect square?

(i)

12
(ii)

13
(iii)

14
(iv)

11
(v)

10

Question 10

10.

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

(i)

16
(ii)

13
(iii)

18
(iv)

15
(v)

17

Question 11

11.

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

(i)

82
(ii)

78
(iii)

80
(iv)

81
(v)

84

Question 12

12.

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

(i)

97
(ii)

102
(iii)

99
(iv)

101
(v)

100

Question 13

13.

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

(i)

964
(ii)

958
(iii)

960
(iv)

962
(v)

961

Question 14

14.

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

(i)

1023
(ii)

1024
(iii)

1025
(iv)

1027
(v)

1021

Question 15

15.

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

(i)

9802
(ii)

9801
(iii)

9800
(iv)

9803
(v)

9798

Question 16

16.

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

(i)

10002
(ii)

9998
(iii)

9999
(iv)

10001
(v)

10000

Question 17

17.

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

(i)

99858
(ii)

99857
(iii)

99853
(iv)

99855
(v)

99856

Question 18

18.

Find the square root of
51.94

(i)

9.21
(ii)

5.21
(iii)

6.21
(iv)

8.21
(v)

7.21

Question 19

19.

Find the square root of
105.062

(i)

8.25
(ii)

9.25
(iii)

12.25
(iv)

10.25
(v)

11.25

Question 20

20.

Find the square root of
2174.5700

(i)

46.6323
(ii)

47.6323
(iii)

48.6323
(iv)

45.6323
(v)

44.6323

Question 21

21.

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

(i)

3
(ii)

2
(iii)

(-1)
(iv)

5
(v)

1

Question 22

22.

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

(i)

14
(ii)

12
(iii)

8
(iv)

10
(v)

11

Question 23

23.

Which of the following is a perfect square?

(i)

1602
(ii)

838
(iii)

1025
(iv)

1763
(v)

1521

Question 24

24.

Which of the following is not a perfect square?

(i)

256
(ii)

16
(iii)

482
(iv)

1369
(v)

484

Question 25

25.

What is the unit place digit in the square of 6?

(i)

4
(ii)

8
(iii)

9
(iv)

0
(v)

6

Question 26

26.

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

(i)

7
(ii)

3
(iii)

8
(iv)

5
(v)

6

Question 27

27.

Find the number of numbers between
9 2
and
10 2

(i)

18
(ii)

15
(iii)

19
(iv)

21
(v)

17

Question 28

28.

How many digits are there in the square root of 2304?

(i)

2
(ii)

(-1)
(iii)

5
(iv)

1
(v)

3

Question 29

29.

How many digits are there in the square root of 824464?

(i)

2
(ii)

1
(iii)

4
(iv)

5
(v)

3

Question 30

30.

Find the least number that must be subtracted from 83 to get a perfect square?

(i)

1
(ii)

(-1)
(iii)

2
(iv)

3
(v)

4

Question 31

31.

Find the least number that must be added to 664 to get a perfect square?

(i)

15
(ii)

12
(iii)

13
(iv)

11
(v)

9

Question 32

32.

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

(i)

16
(ii)

19
(iii)

17
(iv)

15
(v)

13

Question 33

33.

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

(i)

83
(ii)

82
(iii)

80
(iv)

81
(v)

78

Question 34

34.

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

(i)

100
(ii)

103
(iii)

98
(iv)

101
(v)

99

Question 35

35.

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

(i)

964
(ii)

962
(iii)

961
(iv)

960
(v)

958

Question 36

36.

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

(i)

1022
(ii)

1025
(iii)

1024
(iv)

1027
(v)

1023

Question 37

37.

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

(i)

9802
(ii)

9804
(iii)

9801
(iv)

9798
(v)

9800

Question 38

38.

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

(i)

10001
(ii)

9998
(iii)

10003
(iv)

10000
(v)

9999

Question 39

39.

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

(i)

99858
(ii)

99856
(iii)

99854
(iv)

99855
(v)

99857

Question 40

40.

Find the square root of
89.50

(i)

8.46
(ii)

11.46
(iii)

10.46
(iv)

9.46
(v)

7.46

Question 41

41.

Find the square root of
302.200

(i)

18.384
(ii)

17.384
(iii)

19.384
(iv)

15.384
(v)

16.384

Question 42

42.

Find the square root of
1044.1000

(i)

33.3125
(ii)

34.3125
(iii)

31.3125
(iv)

30.3125
(v)

32.3125

Question 43

43.

The smallest number by which 245 must be multiplied so that the product is a perfect square is?

(i)

3
(ii)

5
(iii)

7
(iv)

6
(v)

4

Question 44

44.

The smallest number by which 8000 must be divided so that the quotient is a perfect square is?

(i)

5
(ii)

4
(iii)

8
(iv)

6
(v)

3

Assignment Key