EduSahara™ Worksheet

Question 1

1.

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

(i)

959
(ii)

964
(iii)

962
(iv)

961
(v)

960

Question 2

2.

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

(i)

17
(ii)

16
(iii)

15
(iv)

19
(v)

13

Question 3

3.

The smallest number by which 1372 must be multiplied so that the product is a perfect cube is?

(i)

0
(ii)

2
(iii)

3
(iv)

4
(v)

1

Question 4

4.

√

0.0400
=

(i)

0.3
(ii)

0.2
(iii)

0.02
(iv)

0.4
(v)

0.1

Question 5

5.

Find the square root of
747.190

(i)

27.335
(ii)

25.335
(iii)

28.335
(iv)

29.335
(v)

26.335

Question 6

6.

Find the exponential notation of

(i)

(-3) 6
(ii)

(-3) 7
(iii)

(-3) 5
(iv)

(-6) 6
(v)

(-1) 6

Question 7

7.

Which of the following is a perfect cube?

(i)

514
(ii)

998
(iii)

63
(iv)

344
(v)

729

Question 8

8.

Find the cube of
24

(i)

13821
(ii)

576
(iii)

13827
(iv)

13824
(v)

579

Question 9

9.

Simplify
3
√

729

+

3
√

1331

3
√

343

−

3
√

27
=

(i)

5
(ii)

22
4
(iii)

18
4
(iv)

20
6
(v)

10

Question 10

10.

Find the smallest perfect square which is divisible by each of the numbers 16,18,14

(i)

14112
(ii)

7058
(iii)

7056
(iv)

16128
(v)

18145

Question 11

11.

Find the
square root
of
16

(i)

1
(ii)

7
(iii)

4
(iv)

3
(v)

5

Question 12

12.

Find the
square root
of
1
25

(i)

1
3
(ii)

(
-1
5
)
(iii)

3
5
(iv)

1
5
(v)

1
7

Question 13

13.

3

0
=

(i)

-1
(ii)

0
(iii)

1
(iv)

undefined
(v)

∞

Question 14

14.

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

(i)

103
(ii)

98
(iii)

100
(iv)

101
(v)

99

Question 15

15.

-9

0
=

(i)

1
(ii)

∞
(iii)

-1
(iv)

undefined
(v)

0

Question 16

16.

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

(i)

1027
(ii)

1025
(iii)

1023
(iv)

1024
(v)

1021

Question 17

17.

Find the exponential notation of

(i)

10 5
(ii)

7 5
(iii)

7 6
(iv)

7 4
(v)

5 5

Question 18

18.

Find the least number that must be subtracted from 2434 to get a perfect square?

(i)

34
(ii)

33
(iii)

36
(iv)

32
(v)

30

Question 19

19.

3
√

512
729
=

(i)

8
11
(ii)

8
9
(iii)

8
7
(iv)

2
3
(v)

10
9

Question 20

20.

The smallest number by which 16875 must be divided so that the quotient is a perfect cube is?

(i)

4
(ii)

5
(iii)

7
(iv)

6
(v)

2

Question 21

21.

Find the least number that must be added to 777 to get a perfect square?

(i)

6
(ii)

7
(iii)

10
(iv)

4
(v)

8

Question 22

22.

Find the
cube root
of
-8

(i)

-3
(ii)

-1
(iii)

1
(iv)

-4
(v)

-2

Question 23

23.

The smallest number by which 12 must be multiplied so that the product is a perfect square is?

(i)

1
(ii)

2
(iii)

3
(iv)

6
(v)

4

Question 24

24.

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

(i)

6
(ii)

7
(iii)

8
(iv)

5
(v)

4

Question 25

25.

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

(i)

99858
(ii)

99857
(iii)

99855
(iv)

99856
(v)

99854

Assignment Key