EduSahara™ Worksheet

Question 1

1.

Find the square root of
4467.3030

(i)

66.8379
(ii)

64.8379
(iii)

67.8379
(iv)

65.8379
(v)

68.8379

Question 2

2.

The solution of
√

2
lies between

(i)

1.40 and 1.41
(ii)

1.39 and 1.40
(iii)

1.42 and 1.43
(iv)

1.41 and 1.42
(v)

1.43 and 1.44

Question 3

3.

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

(i)

102
(ii)

99
(iii)

100
(iv)

101
(v)

98

Question 4

4.

Find the prime factorization of
2160

(i)

2 4

✕

3 3

✕

5
(ii)

2 4

✕

3 2

✕

5
(iii)

2 4

✕

3 4

✕

5
(iv)

2

✕

3 3

✕

5
(v)

5 4

✕

3 3

✕

5

Question 5

5.

(i)

928
(ii)

9300
(iii)

93
(iv)

930
(v)

932

Question 6

6.

Find the
square root
of
25
4

(i)

3
(ii)

5
2
(iii)

9
4
(iv)

7
2
(v)

3
2

Question 7

7.

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

(i)

15
(ii)

16
(iii)

18
(iv)

13
(v)

17

Question 8

8.

Find the number of numbers between
10 2
and
11 2

(i)

19
(ii)

17
(iii)

21
(iv)

20
(v)

22

Question 9

9.

Find the prime factorization of
2016

(i)

5 5

✕

3 2

✕

7
(ii)

2 5

✕

3 2

✕

6
(iii)

2 5

✕

3 2

✕

7
(iv)

2 5

✕

3 3

✕

7
(v)

2 2

✕

3 2

✕

7

Question 10

10.

The solution of
√

6
lies between

(i)

2.4492 and 2.4493
(ii)

2.4494 and 2.4495
(iii)

2.4495 and 2.4496
(iv)

2.4496 and 2.4497
(v)

2.4493 and 2.4494

Question 11

11.

Identify the Pythagorean triplet whose largest number is 17

(i)

{6,13,17}
(ii)

{9,14,17}
(iii)

{7,16,17}
(iv)

{10,16,17}
(v)

{8,15,17}

Question 12

12.

Find the square root of
638.230

(i)

25.263
(ii)

26.263
(iii)

27.263
(iv)

24.263
(v)

23.263

Question 13

13.

The solution of
√

3
lies between

(i)

1 and 2
(ii)

0 and 1
(iii)

3 and 4
(iv)

2 and 3
(v)

-1 and 0

Question 14

14.

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

(i)

10000
(ii)

10001
(iii)

10003
(iv)

9997
(v)

9999

Question 15

15.

Which of the following is a Pythagorean triplet?

(i)

{16,63,65}
(ii)

{16,65,64}
(iii)

{16,61,65}
(iv)

{16,64,66}
(v)

{16,62,64}

Question 16

16.

Identify the Pythagorean triplet whose middle number is 48

(i)

{13,48,49}
(ii)

{14,48,50}
(iii)

{15,48,47}
(iv)

{15,48,49}
(v)

{16,48,50}

Question 17

17.

The solution of
√

10
lies between

(i)

2.9 and 3.0
(ii)

3.2 and 3.3
(iii)

3.1 and 3.2
(iv)

3.3 and 3.4
(v)

3.0 and 3.1

Question 18

18.

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

(i)

82
(ii)

83
(iii)

81
(iv)

80
(v)

78

Question 19

19.

(i)

0.6
(ii)

55
(iii)

5.5
(iv)

7.5
(v)

3.5

Question 20

20.

Identify the Pythagorean triplet whose smallest number is 20

(i)

{20,101,102}
(ii)

{20,99,101}
(iii)

{20,100,102}
(iv)

{20,101,103}
(v)

{20,100,103}

Question 21

21.

How many digits are there in the square root of 774400?

(i)

6
(ii)

0
(iii)

3
(iv)

2
(v)

4

Question 22

22.

(i)

70000
(ii)

6998
(iii)

7002
(iv)

700
(v)

7000

Question 23

23.

Which of the following is a perfect square?

(i)

224
(ii)

6
(iii)

726
(iv)

1025
(v)

289

Question 24

24.

Find the smallest perfect square which is divisible by each of the numbers 10,18,14

(i)

6300
(ii)

44100
(iii)

11341
(iv)

88200
(v)

44102

Question 25

25.

(i)

8.64
(ii)

0.64
(iii)

0.06
(iv)

6.4
(v)

2.64

Assignment Key