EduSahara™ Worksheet

Question 1

1.

Which of the following are true?

a)	real numbers are closed under multiplication
b)	real numbers are closed under addition
c)	real numbers are closed under division
d)	real numbers are closed under subtraction

(i)

{c,a}
(ii)

{c,b}
(iii)

{c,d}
(iv)

{a,b,d}
(v)

{c,a,b}

Question 2

2.

5
✕
11
6
= ______

(i)

19
2
(ii)

55
4
(iii)

55
8
(iv)

53
6
(v)

55
6

Question 3

3.

The decimal number 980.59 lies between

(i)

{981,982}
(ii)

{980,981}
(iii)

{982,983}
(iv)

{979,980}
(v)

{978,979}

Question 4

4.

The recurring part of the decimal
14.22222222222222...
is

(i)

14.2
(ii)

2
(iii)

22
(iv)

221
(v)

222

Question 5

5.

Which of the following is a mixed recurring decimal?

(i)

0.43333333333333...
(ii)

0.33333333333333...
(iii)

10.51851851851851...
(iv)

16.22222222222222...
(v)

1.88888888888888...

Question 6

6.

14
+
1
4
= ______

(i)

57
4
(ii)

55
4
(iii)

19
2
(iv)

57
2
(v)

59
4

Question 7

7.

Express
3
10
as a decimal correct to 1 decimal places

(i)

0.4
(ii)

3
(iii)

0.3
(iv)

0.1
(v)

0

Question 8

8.

The decimal number -1.080 lies between

(i)

{-1.090,-1.070}
(ii)

{-1.070,-1.060}
(iii)

{-1.079,-1.078}
(iv)

{-1.082,-1.081}
(v)

{-1.100,-1.090}

Question 9

9.

19
÷
8
1
= ______

(i)

17
8
(ii)

19
8
(iii)

19
10
(iv)

19
6
(v)

21
8

Question 10

10.

269
14
−
18
= ______

(i)

17
12
(ii)

17
14
(iii)

17
16
(iv)

19
14
(v)

15
14

Question 11

11.

Express
1
3
as a decimal correct to 2 decimal places

(i)

0.43
(ii)

0.53
(iii)

0.23
(iv)

0.33
(v)

0.13

Question 12

12.

Which of the following decimal numbers lie between
4526.750
and
4526.751
?

(i)

4526.7503
(ii)

4526.7514
(iii)

45267.5025
(iv)

4526.7492
(v)

452.675

Question 13

13.

Find the difference between the values of numbers at point A and B

(i)

5
(ii)

10
(iii)

8
(iv)

7
(v)

6

Question 14

14.

The decimal number 1.074 lies between

(i)

{1.075,1.076}
(ii)

{1.064,1.084}
(iii)

{1.084,1.094}
(iv)

{1.054,1.064}
(v)

{1.072,1.073}

Question 15

15.

11
1
✕
1
= ______

(i)

11
(ii)

10
(iii)

12
(iv)

8
(v)

13

Question 16

16.

Find the missing value in
19
18
+
______ =
38
9

(i)

17
6
(ii)

19
4
(iii)

19
8
(iv)

7
2
(v)

19
6

Question 17

17.

Which of the following are true?

a)

16

÷

18

=

18

÷

16

b)

15

+

4

=

4

+

15

c)

4

−

16

=

16

−

4

d)

18

✕

15

=

15

✕

18

(i)

{a,b}
(ii)

{a,c,b}
(iii)

{c,d}
(iv)

{a,d,b}
(v)

{b,d}

Question 18

18.

The decimal number 53.4 lies between

(i)

{55,56}
(ii)

{53,54}
(iii)

{52,53}
(iv)

{54,55}
(v)

{51,52}

Question 19

19.

Which of the following is true?

a)

3.7800

÷

13.3200

=

13.3200

÷

3.7800

b)

20.9800

−

3.7800

=

3.7800

−

20.9800

c)

9.1100

+

20.9800

=

20.9800

+

9.1100

d)

13.3200

✕

9.1100

=

9.1100

✕

13.3200

(i)

{a,d,c}
(ii)

{a,b,c}
(iii)

{c,d}
(iv)

{a,c}
(v)

{b,d}

Question 20

20.

Find the period of the recurring decimal
2.
7

(i)

7
(ii)

70
(iii)

1
(iv)

2
(v)

0

Question 21

21.

Express
51
32
as a decimal correct to 4 decimal places

(i)

1.4937
(ii)

1.7937
(iii)

1.5938
(iv)

1.3938
(v)

1.6938

Question 22

22.

The solution of
√

13
lies between

(i)

3.60 and 3.61
(ii)

3.61 and 3.62
(iii)

3.59 and 3.60
(iv)

3.62 and 3.63
(v)

3.58 and 3.59

Question 23

23.

Express
403
1000
as a decimal correct to 3 decimal places

(i)

0.04
(ii)

0.403
(iii)

4.03
(iv)

0.503
(v)

0.203

Question 24

24.

Convert the fraction
244
27
to non-terminating recurring decimal

(i)

903.
703
(ii)

0.9
037
(iii)

90.
370
(iv)

9.
037
(v)

0.09
037

Question 25

25.

Find the difference of the rational numbers at the points labelled with letters H and I

(i)

(
-7
8
)
(ii)

(
-7
12
)
(iii)

(
-1
2
)
(iv)

(
-9
10
)
(v)

(
-7
10
)

Assignment Key