EduSahara™ Worksheet

Question 1

1.

Find the sum of the decimal numbers at the points labelled with letters Q and R

(i)

19.6
(ii)

18.9
(iii)

19.2
(iv)

19.5
(v)

19.8

Question 2

2.

Which of the following are true?

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

(i)

{a,d}
(ii)

{a,b}
(iii)

{a,c}
(iv)

{a,b,c}
(v)

{b,c,d}

Question 3

3.

Find the missing value in
2
5
+
______ =
17
30

(i)

1
6
(ii)

1
2
(iii)

1
4
(iv)

1
8
(v)

(
-1
6
)

Question 4

4.

Find the difference of the decimal numbers at the points labelled with letters Q and R

(i)

0.1
(ii)

0.5
(iii)

-0
(iv)

0.6
(v)

0.2

Question 5

5.

4
÷
11
6
= ______

(i)

24
13
(ii)

2
(iii)

26
11
(iv)

24
11
(v)

8
3

Question 6

6.

7
4
÷
13
= ______

(i)

7
52
(ii)

9
52
(iii)

7
54
(iv)

7
50
(v)

5
52

Question 7

7.

Find the sum of the rational numbers at the points labelled with letters R and S

(i)

8
(ii)

13
2
(iii)

17
2
(iv)

29
4
(v)

15
2

Question 8

8.

4
16
÷
12
= ______

(i)

(
-1
48
)
(ii)

1
16
(iii)

1
46
(iv)

1
50
(v)

1
48

Question 9

9.

2
3
✕
14
= ______

(i)

28
5
(ii)

28
(iii)

28
3
(iv)

26
3
(v)

10

Question 10

10.

The decimal number 0.146 lies between

(i)

{0,1}
(ii)

{2,3}
(iii)

{1,2}
(iv)

{-1,0}
(v)

{-2,-1}

Question 11

11.

Find the rational number at the point labelled with letter Q

(i)

-4
(ii)

-20
(iii)

(
-22
3
)
(iv)

-6
(v)

(
-20
3
)

Question 12

12.

Which of the following is true?

(i)

35
6

<

9
2
(ii)

27
16

<

37
16
(iii)

35
31

<

33
31
(iv)

35
32

>

39
16
(v)

37
11

<

21
20

Question 13

13.

Find the product of the decimal numbers at the points labelled with letters M and N

(i)

75.2
(ii)

74.8
(iii)

75.3
(iv)

74.5
(v)

75.1

Question 14

14.

6
7
+
7
= ______

(i)

11
(ii)

55
9
(iii)

53
7
(iv)

55
7
(v)

57
7

Question 15

15.

Find the product of the rational numbers at the points labelled with letters K and L

(i)

504
25
(ii)

182
9
(iii)

508
25
(iv)

506
25
(v)

466
23

Question 16

16.

20
−
5
12
= ______

(i)

235
14
(ii)

233
12
(iii)

79
4
(iv)

47
2
(v)

235
12

Question 17

17.

Which of the following decimal numbers lie between
4869
and
4870
?

(i)

48698
(ii)

4869.8
(iii)

4870.2
(iv)

4868
(v)

487

Question 18

18.

The multiplicative inverse of
(
-2
5
)
is

(i)

(
-5
2
)
(ii)

(
-3

1
2
)
(iii)

(
-4

1
2
)
(iv)

(
-1
2
)
(v)

(
-1

1
2
)

Question 19

19.

Find the missing value in
20
3
−
______ =
59
12

(i)

7
6
(ii)

5
4
(iii)

7
2
(iv)

7
4
(v)

9
4

Question 20

20.

Which of the following is true?

a)

8.9400

−

(

18.0000

−

9.8000

)

=

(

8.9400

−

18.0000

)

−

9.8000

b)

18.0000

÷

(

9.8000

÷

3.6200

)

=

(

18.0000

÷

9.8000

)

÷

3.6200

c)

9.8000

✕

(

3.6200

✕

8.9400

)

=

(

9.8000

✕

3.6200

)

✕

8.9400

d)

3.6200

+

(

8.9400

+

18.0000

)

=

(

3.6200

+

8.9400

)

+

18.0000

(i)

{a,b,c}
(ii)

{c,d}
(iii)

{a,d,c}
(iv)

{a,c}
(v)

{b,d}

Question 21

21.

Which of the following are true?

a)

18

+

(

16

+

12

)

=

(

18

+

16

)

+

12

b)

19

✕

(

18

✕

16

)

=

(

19

✕

18

)

✕

16

c)

16

−

(

12

−

19

)

=

(

16

−

12

)

−

19

d)

12

÷

(

19

÷

18

)

=

(

12

÷

19

)

÷

18

(i)

{c,a}
(ii)

{d,b}
(iii)

{c,b,a}
(iv)

{c,d,a}
(v)

{a,b}

Question 22

22.

The decimal number -22.9 lies between

(i)

{-22,-21}
(ii)

{-23,-22}
(iii)

{-21,-20}
(iv)

{-24,-23}
(v)

{-25,-24}

Question 23

23.

16
3
✕
11
= ______

(i)

176
(ii)

176
3
(iii)

178
3
(iv)

58
(v)

176
5

Question 24

24.

Find the missing value in
10
9
✕
______ =
160
117

(i)

18
13
(ii)

16
13
(iii)

14
13
(iv)

16
15
(v)

16
11

Question 25

25.

The decimal number -7.0058 lies between

(i)

{-7.0048,-7.0038}
(ii)

{-7.0057,-7.0056}
(iii)

{-7.0078,-7.0068}
(iv)

{-7.0068,-7.0048}
(v)

{-7.0060,-7.0059}

Assignment Key