EduSahara™ Worksheet

Question 1

1.

Find the exponential notation of

(i)

12 7
(ii)

12 8
(iii)

15 8
(iv)

9 8
(v)

12 9

Question 2

2.

Simplify
√

9

−

√

36

√

16

+

√

121
=

(i)

(
-1
3
)
(ii)

(
-1
15
)
(iii)

(
-3
17
)
(iv)

(
-1
5
)
(v)

(
-3
13
)

Question 3

3.

The smallest number by which 108 must be multiplied so that the product is a perfect cube is?

(i)

1
(ii)

3
(iii)

4
(iv)

0
(v)

2

Question 4

4.

Find the exponential notation of

(i)

(-4) 9
(ii)

(-4) 8
(iii)

(-1) 8
(iv)

(-4) 7
(v)

(-6) 8

Question 5

5.

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

(i)

959
(ii)

963
(iii)

961
(iv)

962
(v)

960

Question 6

6.

Simplify
3
√

343

+

3
√

1000

3
√

729

−

3
√

216
=

(i)

17
(ii)

17
5
(iii)

17
3
(iv)

5
(v)

19
3

Question 7

7.

Find the
square root
of
1
9

(i)

1
5
(ii)

(
-1
3
)
(iii)

1
(iv)

1
3

Question 8

8.

-1

9
=

(i)

0
(ii)

∞
(iii)

undefined
(iv)

-1
(v)

1

Question 9

9.

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

(i)

1024
(ii)

1025
(iii)

1023
(iv)

1021
(v)

1026

Question 10

10.

5

0
=

(i)

undefined
(ii)

1
(iii)

0
(iv)

-1
(v)

∞

Question 11

11.

Which of the following is not a perfect cube?

(i)

729
(ii)

346
(iii)

512
(iv)

8
(v)

125

Question 12

12.

Find the smallest perfect square which is divisible by each of the numbers 16,8,10

(i)

800
(ii)

400
(iii)

1280
(iv)

641
(v)

402

Question 13

13.

If a number has 1 zeros at the end, its square has how many zeros?

(i)

2
(ii)

3
(iii)

(-1)
(iv)

4
(v)

1

Question 14

14.

Find the
cube root
of
-64

(i)

-1
(ii)

-4
(iii)

-3
(iv)

-5
(v)

-6

Question 15

15.

How many digits are there in the square root of 912025?

(i)

2
(ii)

4
(iii)

3
(iv)

6
(v)

0

Question 16

16.

Find the exponential notation of

(i)

3 8
(ii)

3 9
(iii)

3 6
(iv)

3 7
(v)

5 8

Question 17

17.

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

(i)

80
(ii)

81
(iii)

79
(iv)

83
(v)

82

Question 18

18.

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

(i)

14
(ii)

17
(iii)

18
(iv)

16
(v)

15

Question 19

19.

0

5
=

(i)

-1
(ii)

0
(iii)

∞
(iv)

undefined
(v)

1

Question 20

20.

The smallest number by which 27 must be multiplied so that the product is a perfect square is?

(i)

3
(ii)

4
(iii)

0
(iv)

2
(v)

6

Question 21

21.

Find the least number that must be subtracted from 2125 to get a perfect square?

(i)

9
(ii)

6
(iii)

11
(iv)

8
(v)

10

Question 22

22.

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

(i)

0
(ii)

4
(iii)

1
(iv)

2
(v)

3

Question 23

23.

Find the
cube root
of
(
-8
27
)

(i)

-2
(ii)

(
-2
3
)
(iii)

(
-4
3
)
(iv)

(
-2
5
)
(v)

0

Question 24

24.

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

(i)

10001
(ii)

9997
(iii)

10000
(iv)

9999
(v)

10002

Question 25

25.

Find the cube of
9

(i)

732
(ii)

84
(iii)

729
(iv)

81
(v)

726

Assignment Key