Page 67 - ICSE Math 7

3
5. Represent on a number line: (a) (b) –1 2
4 3
6. Perform the following divisions.
8
(a) –7 ÷ 2 (b) 5 ÷ –15 (c) ÷ 16
9 3 11 22 9 –15
3
1
(d) 3 ÷ 11 (e) –6 ÷ 3 (f) –48 ÷ 72
7 –12 5 49 –35
7. Calculate the following.

(a) 13 ÷ 39 × –3 (b) – 110 ÷ 7 × 5
21 42 5 21 11 12
1
(c) 5 × –4 ÷ 8 × 3 (d) 1 × ÷ 2 × 5
9 7 –27 –4 3 4 5 3
8. Verify whether each of the following is true or false.

9
9
(a) –18 ÷ = ÷ –18 (b) –85 ÷ –34 = –34 ÷ –85
35 7 7 35 18 3 3 18
9. The product of two numbers is –18 . If one of them is –9 , find the other.
35 7

10. By what number should we multiply 14 to get the product as – 7 ?
39 13
1
1
1
11. Divide the sum of 2 and 5 by the product of 3 and 8 .
5 2 4 13
1
12. The weight of 12 marbles is 181 g. Find the weight of each marble.
5

THINK SMART

5
1. Find a rational number whose standard form is and the sum of its numerator and denominator
is 36. 7

2. Which rational number should be multiplied by 0.28 to get 7 ?
55
3. What should be subtracted from 2 + 1 × 8 so that the difference obtained is equal to the
5
4
3
4
3
product of and ?
5 8
2
4. A cricketer made 270 runs in a test match. These runs are times more than what he made in
7
his last test match. How many runs did he make last year?

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