Page 83 - Fun with Mathematics 2

ADDITION AND SUBTRACTION OF WEIGHT

Steps to follow:

1. Always write the numbers in a vertical form before adding or subtracting.

2. Write kg and g above the numbers.
3. Write the answer in metric units of weight as given in the question.

1 kg = 1000 g, so 3 digits will come under g.

Addition

4
4
Add 2 kg 5 0 g and 53 kg 75 g. Add 225 kg 625 g and 336 kg 255 g.
kg g kg g
4
4
2 5 0 (To make 3 digits, 225 625
+ 53 075 we use a zero + 336 255

95 615 before 75 g) 561 880
The sum is 95 kg 615 g. The sum is 561 kg 880 g.

Subtraction

4
Subtract 15 kg 286 g from 20 kg 3 5 g. Subtract 125 kg 756 g from 330 kg.

kg g kg g
4
20 3 5 (Write the 330 000 (Three zeros
to form the
– 15 286 greater number – 125 756 3 digits)
4
first) 20 2 44
5 059
4
The difference is 5 kg 59 g. The difference is 20 kg 2 44 g.

5 Find the sum.

(a) kg g (b) kg g (c) kg g (d) kg g
5 265 26 302 17 4 95 28 109
4
+ 2 198 + 5 4 96 + 12 586 + 15 998

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