EduSahara™ Worksheet

Question 1

1.

Find the
cube root
of
27
125

(i)

3
7
(ii)

1
(iii)

1
5
(iv)

3
5

Question 2

2.

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

(i)

9803
(ii)

9799
(iii)

9800
(iv)

9802
(v)

9801

Question 3

3.

Which of the following is a perfect square?

(i)

1521
(ii)

228
(iii)

577
(iv)

35
(v)

286

Question 4

4.

Find the square root of
458.800

(i)

23.42
(ii)

19.42
(iii)

20.42
(iv)

21.42
(v)

22.42

Question 5

5.

Simplify
3
√

8

+

3
√

1000

3
√

512

−

3
√

1331
=

(i)

(
-14
3
)
(ii)

-12
(iii)

-4
(iv)

(
-12
5
)
(v)

(
-10
3
)

Question 6

6.

Find the square root of
41.30

(i)

5.43
(ii)

4.43
(iii)

6.43
(iv)

7.43
(v)

8.43

Question 7

7.

The smallest number by which 128 must be divided so that the quotient is a perfect square is?

(i)

3
(ii)

5
(iii)

1
(iv)

2
(v)

(-1)

Question 8

8.

3

0
=

(i)

∞
(ii)

-1
(iii)

undefined
(iv)

0
(v)

1

Question 9

9.

Find the cube root of
21952

(i)

28
(ii)

784
(iii)

25
(iv)

787
(v)

31

Question 10

10.

Find the exponential notation of

(i)

(-1) 5
(ii)

2 5
(iii)

2 4
(iv)

4 5
(v)

2 6

Question 11

11.

What is the unit place digit in the square of 33?

(i)

2
(ii)

6
(iii)

9
(iv)

3
(v)

8

Question 12

12.

0

4
=

(i)

undefined
(ii)

0
(iii)

1
(iv)

-1
(v)

∞

Question 13

13.

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

(i)

6
(ii)

4
(iii)

5
(iv)

9
(v)

7

Question 14

14.

Find the cube of
10

(i)

1000
(ii)

103
(iii)

997
(iv)

100
(v)

1003

Question 15

15.

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

(i)

960
(ii)

958
(iii)

962
(iv)

964
(v)

961

Question 16

16.

Find the exponential notation of

(i)

(-9) 5
(ii)

(-9) 3
(iii)

(-12) 4
(iv)

(-9) 4
(v)

(-7) 4

Question 17

17.

0

0
=

(i)

∞
(ii)

undefined
(iii)

0
(iv)

-1
(v)

1

Question 18

18.

Find the
square root
of
16
9

(i)

2
(ii)

4
(iii)

4
3
(iv)

4
5
(v)

2
3

Question 19

19.

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

(i)

6
(ii)

8
(iii)

4
(iv)

2
(v)

5

Question 20

20.

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

(i)

1023
(ii)

1025
(iii)

1022
(iv)

1026
(v)

1024

Question 21

21.

-1

9
=

(i)

0
(ii)

-1
(iii)

undefined
(iv)

∞
(v)

1

Question 22

22.

How many digits are there in the square root of 9409?

(i)

5
(ii)

1
(iii)

0
(iv)

2
(v)

3

Question 23

23.

Which of the following is a perfect cube?

(i)

128
(ii)

63
(iii)

344
(iv)

1000
(v)

509

Question 24

24.

Find the exponential notation of

(i)

19 4
(ii)

19 6
(iii)

17 5
(iv)

19 5
(v)

22 5

Question 25

25.

3
√

0.2160
=

(i)

0.5
(ii)

0.6
(iii)

0.7
(iv)

0.06
(v)

0.8

Assignment Key