66
UNIT 6
Subtraction involving length
(b) 7 m 35 cm - 1m 60 cm
Work out the following.
(a) 3 m 45 cm - 57 cm
57 cm cannot be subtracted from 45 cm.
We borrow 1 m = 100 cm from 3 m.
2100
3 45
-
cm
m
57
2 88
7 35
-
cm
m
1 60
100
6
5 75
60 cm cannot be subtracted from 35 cm.
We borrow 1 m = 100 cm from 7 m.
Let’s work out
10. Work out the following.
11. Work out the following.
(a) 63 cm - 21 cm (b) 6 m 32 cm - 2 m 44 cm (c) 7 m 68 cm - 4 m 5 cm
(a) 62 cm
27 cm
-
(b) 6 m 85 cm
2 m 23 cm
-
(c) 8 m 26 cm
5 m 43 cm
-
57 cm
-
2 m 88 cm
3 m 45 cm
2100
5 m 75 cm
7 m 35 cm
1 m 60 cm
-
6100