Page 75 - Fun with Mathematics 2

ADDITION AND SUBTRACTION OF LENGTH

Steps to follow:

1. Always write the numbers in the vertical form before adding or subtracting.
2. Write m and cm above the numbers.

3. Write the answer in the metric units of length as given in the question.

1 m = 100 cm, so two digits will come under cm.
Addition

4
4
Add 8 m 12 cm and 5 m 13 cm. Add 78 m 52 cm and 32 m 62 cm.
m cm m cm
4
8 12 78 52
+ 5 13 + 32 4 62

13 25 803 1 4

4
The sum is 13 m 25 cm. The sum is 803 m 1 cm.
Subtraction
4
4
Subtract 15 m 57 cm from 35 m 2 cm. Subtract 1 8 m 76 cm from 290 m
m cm 52 cm.

35 2 4 m cm
– 15 57 290 52
4
– 1 8 76
19 67
4
1 1 76
4
The difference is 19 m 67 cm. The difference is 1 1 m 76 cm.
6 Find the sum.

(a) m cm (b) m cm (c) m cm (d) m cm
2 4 22 4 5 70 6 4 17 28 25

+ 15 12 + 26 29 + 53 98 + 86 90

(e) m cm (f) m cm (g) m cm (h) m cm
4 15 11 56 4 58 4 4 11 683 15
2
4
4
+ 3 8 89 + 228 4 9 + 03 18 + 316 16

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