EduSahara™ Worksheet

Question 1

1.

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

(i)

(-1)
(ii)

3
(iii)

2
(iv)

1
(v)

5

Question 2

2.

Find the exponential notation of

(i)

9 4
(ii)

6 3
(iii)

3 4
(iv)

6 5
(v)

6 4

Question 3

3.

Find the least number that must be added to 1841 to get a perfect square?

(i)

5
(ii)

8
(iii)

9
(iv)

7
(v)

10

Question 4

4.

Find the cube root of
2744

(i)

17
(ii)

199
(iii)

196
(iv)

14
(v)

11

Question 5

5.

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

(i)

0
(ii)

4
(iii)

2
(iv)

1
(v)

3

Question 6

6.

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

(i)

1023
(ii)

1021
(iii)

1027
(iv)

1025
(v)

1024

Question 7

7.

-4

0
=

(i)

-1
(ii)

undefined
(iii)

0
(iv)

1
(v)

∞

Question 8

8.

Find the square root of
227.100

(i)

17.07
(ii)

13.07
(iii)

16.07
(iv)

14.07
(v)

15.07

Question 9

9.

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

(i)

16
(ii)

17
(iii)

15
(iv)

19
(v)

13

Question 10

10.

-1

8
=

(i)

∞
(ii)

0
(iii)

undefined
(iv)

1
(v)

-1

Question 11

11.

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

(i)

963
(ii)

961
(iii)

958
(iv)

960
(v)

962

Question 12

12.

Find the cube of
11

(i)

1334
(ii)

124
(iii)

1331
(iv)

121
(v)

1328

Question 13

13.

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

(i)

100
(ii)

98
(iii)

102
(iv)

99
(v)

101

Question 14

14.

Find the least number that must be subtracted from 294 to get a perfect square?

(i)

6
(ii)

3
(iii)

4
(iv)

8
(v)

5

Question 15

15.

Find the
square root
of
25
16

(i)

3
2
(ii)

5
4
(iii)

3
4
(iv)

7
6
(v)

7
4

Question 16

16.

Find the square root of
57.50

(i)

9.58
(ii)

7.58
(iii)

6.58
(iv)

5.58
(v)

8.58

Question 17

17.

3
√

27
64
=

(i)

5
4
(ii)

1
4
(iii)

3
4
(iv)

1
2
(v)

3
2

Question 18

18.

Which of the following is a perfect square?

(i)

1224
(ii)

1444
(iii)

1597
(iv)

2212
(v)

1025

Question 19

19.

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

(i)

10001
(ii)

10000
(iii)

10003
(iv)

9998
(v)

9999

Question 20

20.

2

0
=

(i)

0
(ii)

∞
(iii)

1
(iv)

undefined
(v)

-1

Question 21

21.

Which of the following is not a perfect cube?

(i)

216
(ii)

64
(iii)

512
(iv)

1000
(v)

30

Question 22

22.

Find the
cube root
of
(
-125
27
)

(i)

-1
(ii)

-5
(iii)

(
-5
3
)
(iv)

(
-7
3
)

Question 23

23.

What is the unit place digit in the square of 6?

(i)

3
(ii)

4
(iii)

6
(iv)

5
(v)

8

Question 24

24.

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

(i)

99855
(ii)

99858
(iii)

99853
(iv)

99856
(v)

99857

Question 25

25.

Simplify
√

25

−

√

121

√

4

+

√

36
=

(i)

(
-3
4
)
(ii)

-1
(iii)

(
-3
5
)
(iv)

(
-1
2
)

Assignment Key