EduSahara™ Worksheet

Question 1

1.

Which of the following is a perfect square?

(i)

1370
(ii)

1021
(iii)

7
(iv)

2499
(v)

1600

Question 2

2.

Which of the following is not a perfect square?

(i)

64
(ii)

361
(iii)

144
(iv)

1156
(v)

1442

Question 3

3.

What is the unit place digit in the square of 49?

(i)

1
(ii)

2
(iii)

3
(iv)

4
(v)

6

Question 4

4.

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

(i)

7
(ii)

8
(iii)

11
(iv)

6
(v)

9

Question 5

5.

Find the number of numbers between
2 2
and
3 2

(i)

3
(ii)

1
(iii)

7
(iv)

5
(v)

4

Question 6

6.

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

(i)

1
(ii)

0
(iii)

3
(iv)

2
(v)

5

Question 7

7.

How many digits are there in the square root of 40401?

(i)

2
(ii)

4
(iii)

3
(iv)

0
(v)

5

Question 8

8.

Find the least number that must be subtracted from 172 to get a perfect square?

(i)

6
(ii)

1
(iii)

2
(iv)

3
(v)

4

Question 9

9.

Find the least number that must be added to 165 to get a perfect square?

(i)

6
(ii)

2
(iii)

4
(iv)

3
(v)

5

Question 10

10.

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

(i)

13
(ii)

19
(iii)

15
(iv)

17
(v)

16

Question 11

11.

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

(i)

80
(ii)

78
(iii)

82
(iv)

81
(v)

84

Question 12

12.

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

(i)

98
(ii)

99
(iii)

101
(iv)

100
(v)

102

Question 13

13.

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

(i)

961
(ii)

958
(iii)

962
(iv)

964
(v)

960

Question 14

14.

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

(i)

1026
(ii)

1023
(iii)

1024
(iv)

1025
(v)

1021

Question 15

15.

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

(i)

9800
(ii)

9804
(iii)

9801
(iv)

9802
(v)

9799

Question 16

16.

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

(i)

9998
(ii)

10000
(iii)

10003
(iv)

9999
(v)

10001

Question 17

17.

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

(i)

99857
(ii)

99856
(iii)

99855
(iv)

99853
(v)

99858

Question 18

18.

Find the square root of
73.86

(i)

6.59
(ii)

8.59
(iii)

7.59
(iv)

9.59
(v)

10.59

Question 19

19.

Find the square root of
359.087

(i)

19.95
(ii)

18.95
(iii)

17.95
(iv)

16.95
(v)

20.95

Question 20

20.

Find the square root of
2990.4900

(i)

56.6854
(ii)

52.6854
(iii)

55.6854
(iv)

54.6854
(v)

53.6854

Question 21

21.

The smallest number by which 48 must be multiplied so that the product is a perfect square is?

(i)

6
(ii)

3
(iii)

0
(iv)

4
(v)

2

Question 22

22.

The smallest number by which 3087 must be divided so that the quotient is a perfect square is?

(i)

6
(ii)

10
(iii)

7
(iv)

8
(v)

5

Question 23

23.

Which of the following is a perfect square?

(i)

900
(ii)

577
(iii)

7
(iv)

2303
(v)

2027

Question 24

24.

Which of the following is not a perfect square?

(i)

2025
(ii)

1521
(iii)

1681
(iv)

16
(v)

15

Question 25

25.

What is the unit place digit in the square of 7?

(i)

5
(ii)

6
(iii)

3
(iv)

2
(v)

9

Question 26

26.

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

(i)

5
(ii)

7
(iii)

10
(iv)

9
(v)

8

Question 27

27.

Find the number of numbers between
15 2
and
16 2

(i)

30
(ii)

28
(iii)

29
(iv)

32
(v)

31

Question 28

28.

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

(i)

1
(ii)

(-1)
(iii)

4
(iv)

2
(v)

3

Question 29

29.

How many digits are there in the square root of 137641?

(i)

0
(ii)

3
(iii)

4
(iv)

6
(v)

2

Question 30

30.

Find the least number that must be subtracted from 1384 to get a perfect square?

(i)

18
(ii)

15
(iii)

16
(iv)

12
(v)

14

Question 31

31.

Find the least number that must be added to 1286 to get a perfect square?

(i)

13
(ii)

11
(iii)

8
(iv)

10
(v)

9

Question 32

32.

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

(i)

18
(ii)

15
(iii)

16
(iv)

13
(v)

17

Question 33

33.

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

(i)

84
(ii)

78
(iii)

82
(iv)

80
(v)

81

Question 34

34.

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

(i)

103
(ii)

98
(iii)

101
(iv)

100
(v)

99

Question 35

35.

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

(i)

962
(ii)

960
(iii)

961
(iv)

958
(v)

964

Question 36

36.

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

(i)

1024
(ii)

1023
(iii)

1025
(iv)

1026
(v)

1022

Question 37

37.

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

(i)

9801
(ii)

9798
(iii)

9802
(iv)

9803
(v)

9800

Question 38

38.

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

(i)

10001
(ii)

9999
(iii)

10000
(iv)

10002
(v)

9998

Question 39

39.

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

(i)

99858
(ii)

99855
(iii)

99856
(iv)

99857
(v)

99853

Question 40

40.

Find the square root of
40.96

(i)

5.4
(ii)

8.4
(iii)

6.4
(iv)

7.4
(v)

4.4

Question 41

41.

Find the square root of
970.510

(i)

30.153
(ii)

32.153
(iii)

29.153
(iv)

31.153
(v)

33.153

Question 42

42.

Find the square root of
1857.5000

(i)

42.0987
(ii)

44.0987
(iii)

41.0987
(iv)

43.0987
(v)

45.0987

Question 43

43.

The smallest number by which 75 must be multiplied so that the product is a perfect square is?

(i)

1
(ii)

5
(iii)

2
(iv)

4
(v)

3

Question 44

44.

The smallest number by which 3200 must be divided so that the quotient is a perfect square is?

(i)

5
(ii)

0
(iii)

1
(iv)

3
(v)

2

Assignment Key