EduSahara™ Worksheet

Question 1

1.

Find the LCM of
{80,24}

(i)

241
(ii)

237
(iii)

240
(iv)

239
(v)

243

Question 2

2.

Find the product of LCM and HCF of
{16,10,25}

(i)

399
(ii)

402
(iii)

398
(iv)

400
(v)

401

Question 3

3.

Find the LCM of
{18,16}

(i)

141
(ii)

147
(iii)

143
(iv)

145
(v)

144

Question 4

4.

2.754 =

(i)

1377
5
(ii)

1377
5000
(iii)

1377
50000
(iv)

1377
50
(v)

1377
500

Question 5

5.

Convert the fraction
37
9
to non-terminating recurring decimal

(i)

0.04
1
(ii)

4.
1
(iii)

411.
1
(iv)

41.
1
(v)

0.4
1

Question 6

6.

Which of the following fractions converts to a non-terminating recurring decimal?

(i)

94
9
(ii)

2261
16
(iii)

2293
32
(iv)

4522
64
(v)

3040
80

Question 7

7.

Which of the following is a rational number?

(i)

3
√

93
(ii)

8
20
(iii)

√

13
(iv)

√

83
(v)

√

97

Question 8

8.

Find the prime factorization of
58

(i)

2

✕

29 2
(ii)

2

✕

28
(iii)

2

✕

32
(iv)

2

✕

29
(v)

2

✕

27

Question 9

9.

3.8 =

(i)

380
(ii)

19
500
(iii)

19
50
(iv)

38
(v)

19
5

Question 10

10.

Find the number of prime factors of
92

(i)

0
(ii)

4
(iii)

2
(iv)

3
(v)

1

Question 11

11.

Find the prime factorization of
10

(i)

2

✕

4
(ii)

2

✕

5 2
(iii)

2

✕

8
(iv)

2

✕

3
(v)

2

✕

5

Question 12

12.

3.13 =

(i)

313
10
(ii)

313
10000
(iii)

313
(iv)

313
100
(v)

313
1000

Question 13

13.

Express
9643
10000
as a decimal correct to 4 decimal places

(i)

0.0964
(ii)

0.9643
(iii)

9.643
(iv)

0.7643
(v)

1.0643

Question 14

14.

Find the HCF of
{800,1440,1360,520}

(i)

43
(ii)

39
(iii)

38
(iv)

41
(v)

40

Question 15

15.

6.0 =

(i)

6
1
(ii)

3
5
(iii)

60
(iv)

3
50
(v)

600

Question 16

16.

Find the LCM of
{216,144,96,108}

(i)

865
(ii)

866
(iii)

862
(iv)

864
(v)

863

Question 17

17.

Find the total number of factors of
28

(i)

5
(ii)

8
(iii)

6
(iv)

7
(v)

4

Question 18

18.

Find the prime factorization of
160

(i)

2 6

✕

5
(ii)

2 5

✕

3
(iii)

2 5

✕

5
(iv)

2 5

✕

7
(v)

2 4

✕

5

Question 19

19.

Find the HCF of
{300,720}

(i)

58
(ii)

61
(iii)

62
(iv)

60
(v)

59

Question 20

20.

Find the LCM of
{9,6}

(i)

17
(ii)

19
(iii)

16
(iv)

18
(v)

20

Question 21

21.

Express
9
10
as a decimal correct to 1 decimal places

(i)

0.9
(ii)

9
(iii)

0.7
(iv)

1
(v)

0.1

Question 22

22.

Convert the non-terminating recurring decimal
2.22222222222222...

to rational number

(i)

20
11
(ii)

2
(iii)

20
9
(iv)

22
9
(v)

20
7

Question 23

23.

Find the total number of factors of
58

(i)

1
(ii)

3
(iii)

5
(iv)

7
(v)

4

Question 24

24.

Find the HCF of
{165,420,375}

(i)

16
(ii)

17
(iii)

13
(iv)

15
(v)

14

Question 25

25.

Find the total number of factors of
9504

(i)

48
(ii)

46
(iii)

47
(iv)

50
(v)

49

Assignment Key