EduSahara™ Worksheet

Question 1

1.

How many digits are there in the square root of 312481?

(i)

3
(ii)

5
(iii)

1
(iv)

4
(v)

2

Question 2

2.

The solution of
√

5
lies between

(i)

2.21 and 2.22
(ii)

2.23 and 2.24
(iii)

2.25 and 2.26
(iv)

2.24 and 2.25
(v)

2.22 and 2.23

Question 3

3.

The smallest number by which 432 must be divided so that the quotient is a perfect cube is?

(i)

0
(ii)

4
(iii)

1
(iv)

3
(v)

2

Question 4

4.

Find the square root of
9574.6900

(i)

95.8503
(ii)

99.8503
(iii)

97.8503
(iv)

98.8503
(v)

96.8503

Question 5

5.

(i)

6.8
(ii)

4.8
(iii)

0.5
(iv)

2.8
(v)

48

Question 6

6.

(i)

0.06
(ii)

2.55
(iii)

8.55
(iv)

0.55
(v)

5.5

Question 7

7.

The smallest number by which 99 must be multiplied so that the product is a perfect square is?

(i)

12
(ii)

11
(iii)

10
(iv)

9
(v)

13

Question 8

8.

Find the least number that must be added to 133 to get a perfect square?

(i)

11
(ii)

12
(iii)

9
(iv)

10
(v)

13

Question 9

9.

Find the square root of
14.06

(i)

1.75
(ii)

5.75
(iii)

3.75
(iv)

4.75
(v)

2.75

Question 10

10.

The smallest number by which 243 must be multiplied so that the product is a perfect cube is?

(i)

2
(ii)

3
(iii)

1
(iv)

4
(v)

0

Question 11

11.

Find the value of
11 3
+
10 3

(i)

2331
(ii)

2332
(iii)

2328
(iv)

2330
(v)

2334

Question 12

12.

Find the cube root of
24389

(i)

26
(ii)

841
(iii)

32
(iv)

844
(v)

29

Question 13

13.

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

(i)

1022
(ii)

1023
(iii)

1026
(iv)

1025
(v)

1024

Question 14

14.

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

(i)

961
(ii)

963
(iii)

958
(iv)

962
(v)

960

Question 15

15.

Find the smallest perfect square which is divisible by each of the numbers 15,18,16

(i)

3602
(ii)

3600
(iii)

10800
(iv)

12961
(v)

7200

Question 16

16.

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

(i)

14
(ii)

16
(iii)

17
(iv)

18
(v)

15

Question 17

17.

Which of the following is not a perfect square?

(i)

1
(ii)

2497
(iii)

625
(iv)

196
(v)

2209

Question 18

18.

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

(i)

97
(ii)

101
(iii)

100
(iv)

103
(v)

99

Question 19

19.

Find the value of
22 3
−
21 3

(i)

1385
(ii)

1388
(iii)

1390
(iv)

1387
(v)

1386

Question 20

20.

Find the
cube root
of
8

(i)

3
(ii)

-1
(iii)

2
(iv)

5
(v)

1

Question 21

21.

(i)

82
(ii)

818
(iii)

8200
(iv)

822
(v)

820

Question 22

22.

Find the
cube root
of
1
8

(i)

3
2
(ii)

1
4
(iii)

1
2
(iv)

1
(v)

(
-1
2
)

Question 23

23.

The solution of
√

6
lies between

(i)

2.449 and 2.450
(ii)

2.450 and 2.451
(iii)

2.448 and 2.449
(iv)

2.447 and 2.448
(v)

2.451 and 2.452

Question 24

24.

What is the unit place digit in the square of 15?

(i)

7
(ii)

5
(iii)

3
(iv)

1
(v)

6

Question 25

25.

(i)

9998
(ii)

10002
(iii)

1000
(iv)

100000
(v)

10000

Assignment Key