EduSahara™ Worksheet

Question 1

1.

Which of the following is not a perfect square?

(i)

897
(ii)

144
(iii)

576
(iv)

4
(v)

484

Question 2

2.

Find the
cube root
of
64
27

(i)

4
(ii)

4
3
(iii)

4
5
(iv)

2
3
(v)

2

Question 3

3.

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

(i)

16
(ii)

13
(iii)

17
(iv)

18
(v)

15

Question 4

4.

10

0
=

(i)

-1
(ii)

0
(iii)

1
(iv)

undefined
(v)

∞

Question 5

5.

-1

3
=

(i)

0
(ii)

1
(iii)

∞
(iv)

-1
(v)

undefined

Question 6

6.

The smallest number by which 675 must be multiplied so that the product is a perfect square is?

(i)

4
(ii)

5
(iii)

3
(iv)

2
(v)

0

Question 7

7.

The smallest number by which 19208 must be divided so that the quotient is a perfect cube is?

(i)

8
(ii)

7
(iii)

6
(iv)

5
(v)

9

Question 8

8.

The smallest number by which 256 must be multiplied so that the product is a perfect cube is?

(i)

1
(ii)

4
(iii)

2
(iv)

3
(v)

0

Question 9

9.

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

(i)

103
(ii)

100
(iii)

97
(iv)

99
(v)

101

Question 10

10.

Find the exponential notation of

(i)

14 8
(ii)

11 7
(iii)

17 7
(iv)

14 7
(v)

14 6

Question 11

11.

Find the smallest perfect square which is divisible by each of the numbers 8,12,16

(i)

577
(ii)

144
(iii)

288
(iv)

146
(v)

384

Question 12

12.

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

(i)

12
(ii)

9
(iii)

10
(iv)

13
(v)

11

Question 13

13.

-1

10
=

(i)

∞
(ii)

1
(iii)

undefined
(iv)

-1
(v)

0

Question 14

14.

Simplify
3
√

64

+

3
√

1000

3
√

1331

−

3
√

27
=

(i)

14
10
(ii)

14
8
(iii)

12
8
(iv)

2
(v)

14
6

Question 15

15.

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

(i)

9800
(ii)

9804
(iii)

9799
(iv)

9802
(v)

9801

Question 16

16.

-2

0
=

(i)

undefined
(ii)

1
(iii)

0
(iv)

∞
(v)

-1

Question 17

17.

What is the unit place digit in the square of 41?

(i)

4
(ii)

1
(iii)

6
(iv)

5
(v)

3

Question 18

18.

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

(i)

10000
(ii)

10001
(iii)

10003
(iv)

9997
(v)

9999

Question 19

19.

Find the exponential notation of

(i)

(-13) 6
(ii)

(-17) 6
(iii)

(-15) 7
(iv)

(-15) 5
(v)

(-15) 6

Question 20

20.

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

(i)

3
(ii)

7
(iii)

5
(iv)

1
(v)

4

Question 21

21.

3
√

0.0640
=

(i)

0.4
(ii)

0.6
(iii)

0.3
(iv)

0.04
(v)

0.5

Question 22

22.

3
√

125
512
=

(i)

1
2
(ii)

7
8
(iii)

5
6
(iv)

5
8
(v)

3
8

Question 23

23.

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

(i)

99855
(ii)

99856
(iii)

99854
(iv)

99859
(v)

99857

Question 24

24.

0

6
=

(i)

∞
(ii)

-1
(iii)

1
(iv)

0
(v)

undefined

Question 25

25.

Find the square root of
398.082

(i)

18.952
(ii)

21.952
(iii)

20.952
(iv)

17.952
(v)

19.952

Assignment Key