EduSahara™ Worksheet

Question 1

1.

(i)

6.9
(ii)

0.69
(iii)

8.69
(iv)

0.07
(v)

2.69

Question 2

2.

Find the number of numbers between
6 2
and
7 2

(i)

13
(ii)

15
(iii)

9
(iv)

12
(v)

11

Question 3

3.

Identify the Pythagorean triplet whose middle number is 80

(i)

{19,80,81}
(ii)

{20,80,82}
(iii)

{18,80,82}
(iv)

{17,80,81}
(v)

{19,80,79}

Question 4

4.

Identify the Pythagorean triplet whose one of the numbers is 101

(i)

{19,100,101}
(ii)

{22,100,101}
(iii)

{18,97,101}
(iv)

{20,99,101}
(v)

{21,98,101}

Question 5

5.

The solution of
√

10
lies between

(i)

3.15 and 3.16
(ii)

3.14 and 3.15
(iii)

3.17 and 3.18
(iv)

3.18 and 3.19
(v)

3.16 and 3.17

Question 6

6.

(i)

10000
(ii)

100000
(iii)

10002
(iv)

1000
(v)

9998

Question 7

7.

Find the smallest perfect square which is divisible by each of the numbers 6,9,4

(i)

72
(ii)

38
(iii)

36
(iv)

325
(v)

216

Question 8

8.

The smallest number by which 192 must be multiplied so that the product is a perfect square is?

(i)

0
(ii)

3
(iii)

6
(iv)

2
(v)

4

Question 9

9.

Find the
square root
of
9
16

(i)

1
2
(ii)

5
4
(iii)

3
4
(iv)

3
2
(v)

1
4

Question 10

10.

Which of the following is a Pythagorean triplet?

(i)

{12,34,36}
(ii)

{12,35,37}
(iii)

{12,37,36}
(iv)

{12,33,37}
(v)

{12,36,38}

Question 11

11.

Which of the following is a perfect square?

(i)

80
(ii)

228
(iii)

2210
(iv)

782
(v)

900

Question 12

12.

Identify the Pythagorean triplet whose smallest number is 14

(i)

{14,49,52}
(ii)

{14,50,51}
(iii)

{14,48,50}
(iv)

{14,49,51}
(v)

{14,50,52}

Question 13

13.

Express
19 2
as the sum of two consecutive integers

(i)

181 + 182
(ii)

180 + 181
(iii)

178 + 183
(iv)

179 + 180
(v)

182 + 179

Question 14

14.

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

(i)

10000
(ii)

10001
(iii)

9998
(iv)

9999
(v)

10003

Question 15

15.

Find the square root of
7.80

(i)

2.79
(ii)

3.79
(iii)

4.79
(iv)

0.79
(v)

1.79

Question 16

16.

Find the prime factorization of
972

(i)

2 2

✕

3 4
(ii)

2 2

✕

3 6
(iii)

2 2

✕

3 5
(iv)

2 2

✕

5 5
(v)

2 2

✕

1

Question 17

17.

(i)

4.2
(ii)

0.6
(iii)

8.2
(iv)

62
(v)

6.2

Question 18

18.

The solution of
√

2
lies between

(i)

1.412 and 1.413
(ii)

1.416 and 1.417
(iii)

1.415 and 1.416
(iv)

1.413 and 1.414
(v)

1.414 and 1.415

Question 19

19.

Find the prime factorization of
82944

(i)

2 10

✕

3 4
(ii)

2 10

✕

3 5
(iii)

2 10

✕

1
(iv)

2 9

✕

3 4
(v)

2 10

✕

5 4

Question 20

20.

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

(i)

98
(ii)

100
(iii)

102
(iv)

99
(v)

101

Question 21

21.

The smallest number by which 2187 must be divided so that the quotient is a perfect square is?

(i)

1
(ii)

3
(iii)

4
(iv)

2
(v)

5

Question 22

22.

The solution of
√

5
lies between

(i)

2 and 3
(ii)

3 and 4
(iii)

1 and 2
(iv)

0 and 1
(v)

4 and 5

Question 23

23.

What is the unit place digit in the square of 16?

(i)

7
(ii)

1
(iii)

0
(iv)

6
(v)

8

Question 24

24.

(i)

200
(ii)

202
(iii)

2000
(iv)

20
(v)

198

Question 25

25.

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

(i)

81
(ii)

80
(iii)

82
(iv)

78
(v)

83

Assignment Key