EduSahara™ Worksheet

Question 1

1.

Which of the following is a perfect square?

(i)

168
(ii)

(-2)
(iii)

84
(iv)

4
(v)

101

Question 2

2.

Which of the following is not a perfect square?

(i)

225
(ii)

529
(iii)

1
(iv)

169
(v)

440

Question 3

3.

Find the number of numbers between
12 2
and
13 2

(i)

26
(ii)

25
(iii)

23
(iv)

22
(v)

24

Question 4

4.

Find the smallest perfect square which is divisible by each of the numbers 4,18,10

(i)

900
(ii)

902
(iii)

3241
(iv)

720
(v)

1800

Question 5

5.

How many digits are there in the square root of 289?

(i)

5
(ii)

1
(iii)

0
(iv)

2
(v)

3

Question 6

6.

How many digits are there in the square root of 14641?

(i)

6
(ii)

0
(iii)

3
(iv)

4
(v)

2

Question 7

7.

Find the least number that must be subtracted from 297 to get a perfect square?

(i)

7
(ii)

11
(iii)

8
(iv)

9
(v)

6

Question 8

8.

Find the least number that must be added to 671 to get a perfect square?

(i)

5
(ii)

3
(iii)

4
(iv)

6
(v)

8

Question 9

9.

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

(i)

16
(ii)

19
(iii)

17
(iv)

14
(v)

15

Question 10

10.

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

(i)

80
(ii)

83
(iii)

81
(iv)

82
(v)

79

Question 11

11.

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

(i)

100
(ii)

97
(iii)

101
(iv)

99
(v)

103

Question 12

12.

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

(i)

962
(ii)

961
(iii)

964
(iv)

960
(v)

959

Question 13

13.

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

(i)

1024
(ii)

1025
(iii)

1023
(iv)

1027
(v)

1022

Question 14

14.

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

(i)

9798
(ii)

9801
(iii)

9802
(iv)

9803
(v)

9800

Question 15

15.

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

(i)

10003
(ii)

10000
(iii)

10001
(iv)

9999
(v)

9998

Question 16

16.

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

(i)

99858
(ii)

99856
(iii)

99855
(iv)

99853
(v)

99857

Question 17

17.

Express
9 2
as the sum of two consecutive integers

(i)

39 + 40
(ii)

42 + 39
(iii)

38 + 43
(iv)

40 + 41
(v)

41 + 42

Question 18

18.

The smallest number by which 200 must be multiplied so that the product is a perfect square is?

(i)

1
(ii)

2
(iii)

4
(iv)

(-1)
(v)

3

Question 19

19.

The smallest number by which 1800 must be divided so that the quotient is a perfect square is?

(i)

4
(ii)

1
(iii)

0
(iv)

2
(v)

3

Question 20

20.

What is the unit place digit in the square of 37?

(i)

1
(ii)

8
(iii)

4
(iv)

7
(v)

9

Question 21

21.

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

(i)

6
(ii)

8
(iii)

7
(iv)

11
(v)

9

Question 22

22.

Find the
square root
of
9

(i)

3
(ii)

4
(iii)

2
(iv)

6
(v)

0

Question 23

23.

Find the
square root
of
1
4

(i)

1
2
(ii)

(
-1
2
)
(iii)

3
2
(iv)

1
4
(v)

1

Question 24

24.

(i)

1100
(ii)

11000
(iii)

110
(iv)

1098
(v)

1102

Question 25

25.

(i)

420
(ii)

4200
(iii)

422
(iv)

418
(v)

42

Question 26

26.

(i)

0.3
(ii)

2.3
(iii)

0.2
(iv)

4.3
(v)

23

Question 27

27.

(i)

8.43
(ii)

0.04
(iii)

0.43
(iv)

4.3
(v)

2.43

Assignment Key