EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Real Numbers

Grade : CBSE Grade X

License : Non Commercial Use

Question 1

1.

Find the HCF of
{160,32}

(i)

35
(ii)

32
(iii)

30
(iv)

31
(v)

33

Question 2

2.

Which of the following fractions converts to a terminating decimal?

(i)

106
9
(ii)

4940
8
(iii)

212
117
(iv)

53
81
(v)

247
18

Question 3

3.

2.8 =

(i)

14
5
(ii)

280
(iii)

7
250
(iv)

28
(v)

7
25

Question 4

4.

6.1 =

(i)

61
(ii)

610
(iii)

61
10
(iv)

61
1000
(v)

61
100

Question 5

5.

Find the HCF of
{20,21}

(i)

3
(ii)

1
(iii)

2
(iv)

0
(v)

(-2)

Question 6

6.

Find the product of LCM and HCF of
{12,21,20}

(i)

422
(ii)

418
(iii)

420
(iv)

419
(v)

421

Question 7

7.

Find the total number of factors of
69

(i)

1
(ii)

5
(iii)

7
(iv)

4
(v)

3

Question 8

8.

Find the prime factorization of
1715

(i)

5

✕

7 3
(ii)

5

✕

9 3
(iii)

4

✕

7 3
(iv)

5 2

✕

7 3
(v)

5

✕

5 3

Question 9

9.

The recurring part of the decimal
12.
5
is

(i)

551
(ii)

555
(iii)

12.5
(iv)

55
(v)

5

Question 10

10.

Find the product of LCM and HCF of
{8,6}

(i)

48
(ii)

49
(iii)

47
(iv)

45
(v)

51

Question 11

11.

Which of the following is a rational number?

(i)

8
16
(ii)

3
√

84
(iii)

√

51
(iv)

√

78
(v)

3
√

50

Question 12

12.

Find the prime factorization of
64

(i)

2 7
(ii)

2 5
(iii)

2 6
(iv)

2 4
(v)

5 6

Question 13

13.

6.862 =

(i)

3431
500
(ii)

3431
50
(iii)

3431
50000
(iv)

3431
5
(v)

3431
5000

Question 14

14.

Find the number of prime factors of
1296

(i)

4
(ii)

1
(iii)

0
(iv)

3
(v)

2

Question 15

15.

Find the total number of factors of
2016

(i)

36
(ii)

39
(iii)

33
(iv)

35
(v)

37

Question 16

16.

Find the prime factorization of
1728

(i)

2 5

✕

3 3
(ii)

2 6

✕

3 4
(iii)

2 6

✕

3 3
(iv)

2 6

✕

3
(v)

5 6

✕

3 3

Question 17

17.

Express
1501
10000
as a decimal correct to 4 decimal places

(i)

1.501
(ii)

0.2501
(iii)

-0.0499
(iv)

0.1501
(v)

0.015

Question 18

18.

7.477 =

(i)

7477
10000
(ii)

7477
100000
(iii)

7477
10
(iv)

7477
1000
(v)

7477
100

Question 19

19.

Find the HCF of
{36,33,22}

(i)

1
(ii)

(-2)
(iii)

3
(iv)

2
(v)

0

Question 20

20.

Find the LCM of
{4,9}

(i)

39
(ii)

36
(iii)

35
(iv)

34
(v)

37

Question 21

21.

Convert the non-terminating recurring decimal
23.38095238095237...

to rational number

(i)

493
21
(ii)

491
23
(iii)

491
21
(iv)

163
7
(v)

491
19

Question 22

22.

Find the prime factorization of
44

(i)

2 3

✕

11
(ii)

(-1) 2

✕

11
(iii)

2 2

✕

11
(iv)

2 2

✕

10
(v)

4 2

✕

11

Question 23

23.

13.22 =

(i)

661
50
(ii)

661
5000
(iii)

661
500
(iv)

661
5
(v)

1322

Question 24

24.

Find the number of prime factors of
36

(i)

3
(ii)

4
(iii)

0
(iv)

1
(v)

2

Question 25

25.

Find the HCF of
{810,90}

(i)

89
(ii)

91
(iii)

92
(iv)

90
(v)

87

Assignment Key