EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Real Numbers

Grade : CBSE Grade X

License : Non Commercial Use

Question 1

1.

Find the LCM of
{1020,360,600}

(i)

30599
(ii)

30600
(iii)

30601
(iv)

30602
(v)

30598

Question 2

2.

Express
2697
10000
as a decimal correct to 4 decimal places

(i)

0.2697
(ii)

2.697
(iii)

0.0697
(iv)

0.3697
(v)

0.027

Question 3

3.

Convert the fraction
188
9
to non-terminating recurring decimal

(i)

208.
8
(ii)

20.
8
(iii)

0.20
8
(iv)

2088.
8
(v)

2.0
8

Question 4

4.

Express
19
100
as a decimal correct to 2 decimal places

(i)

0.02
(ii)

-0.01
(iii)

0.19
(iv)

1.9
(v)

0.29

Question 5

5.

Find the HCF of
{4,10}

(i)

2
(ii)

1
(iii)

3
(iv)

(-1)
(v)

4

Question 6

6.

Find the HCF of
{16,12,28,15}

(i)

1
(ii)

2
(iii)

(-1)
(iv)

0
(v)

4

Question 7

7.

Find the product of LCM and HCF of
{20,14,4,27}

(i)

3782
(ii)

3779
(iii)

3781
(iv)

3778
(v)

3780

Question 8

8.

Find the LCM of
{15,12,6}

(i)

58
(ii)

59
(iii)

60
(iv)

61
(v)

62

Question 9

9.

4.2 =

(i)

21
50
(ii)

21
500
(iii)

420
(iv)

42
(v)

21
5

Question 10

10.

5.10 =

(i)

510
(ii)

51
10
(iii)

51
(iv)

51
100
(v)

51
1000

Question 11

11.

Find the product of LCM and HCF of
{9,6}

(i)

55
(ii)

53
(iii)

54
(iv)

56
(v)

51

Question 12

12.

Find the prime factorization of
540

(i)

2 3

✕

3 3

✕

5
(ii)

2 2

✕

1

✕

5
(iii)

2 2

✕

3 3

✕

5
(iv)

2 2

✕

3 2

✕

5
(v)

2 2

✕

3 3

✕

7

Question 13

13.

Find the number of prime factors of
36

(i)

1
(ii)

2
(iii)

3
(iv)

0
(v)

4

Question 14

14.

Find the HCF of
{420,40,660,980}

(i)

20
(ii)

23
(iii)

19
(iv)

17
(v)

21

Question 15

15.

Find the product of LCM and HCF of
{14,8}

(i)

110
(ii)

113
(iii)

111
(iv)

112
(v)

115

Question 16

16.

Find the HCF of
{560,800}

(i)

82
(ii)

77
(iii)

81
(iv)

79
(v)

80

Question 17

17.

Convert the non-terminating recurring decimal
25.11111111111111...

to rational number

(i)

76
3
(ii)

226
9
(iii)

226
11
(iv)

226
7
(v)

224
9

Question 18

18.

Find the total number of factors of
720

(i)

32
(ii)

28
(iii)

30
(iv)

29
(v)

31

Question 19

19.

Find the LCM of
{4,10}

(i)

18
(ii)

23
(iii)

19
(iv)

21
(v)

20

Question 20

20.

5.965 =

(i)

1193
2
(ii)

1193
200
(iii)

1193
2000
(iv)

1193
20
(v)

1193
20000

Question 21

21.

Express
1
10
as a decimal correct to 1 decimal places

(i)

0.1
(ii)

0
(iii)

-0.1
(iv)

1
(v)

0.2

Question 22

22.

Find the number of prime factors of
384

(i)

4
(ii)

1
(iii)

0
(iv)

2
(v)

3

Question 23

23.

Find the product of LCM and HCF of
{9,20,25}

(i)

903
(ii)

897
(iii)

900
(iv)

901
(v)

899

Question 24

24.

Find the prime factorization of
4536

(i)

2 3

✕

3 4

✕

4
(ii)

2 3

✕

3 5

✕

7
(iii)

2 3

✕

3 4

✕

6
(iv)

5 3

✕

3 4

✕

7
(v)

2 3

✕

3 4

✕

7

Question 25

25.

Find the total number of factors of
1512

(i)

33
(ii)

29
(iii)

31
(iv)

34
(v)

32

Assignment Key