Page 163 - SK Year 5 Mathematics DLP

2 Calculate the difference in cooking time, in hours,
between steamed and boiled keropok lekor as
labelled in the pictures.
steamed
1.5 hours – 0.5 hour = hour 1.5 hours

1.5 hours
− 0.5 hour
1.0 hour
boiled
0.5 hour
1.5 hours – 0.5 hour = 1.0 hour

The difference in cooking time between the steamed and the boiled
keropok lekor is 1 hour.

3 3.45 hours − 1 hour 40 minutes = hour minutes

3.45 hours = 3 hours + 0.45 hour hour minute
2 87 60 minutes
= 3 hours + (0.45 × 60) minutes 3 2 7 + 27 minutes
− 1 4 0 87 minutes
= 3 hours 27 minutes 1 4 7

3.45 hours – 1 hour 40 minutes = 1 hour 47 minutes

1
4 1 hours − 0.35 hour = minutes
6
b How long did Divani take, in hours and minutes, to complete her project? 1 7 10 0.35 hour 6 10
1 hours = ( × 60) minutes 70 minutes
5 6 6 = (0.35 × 60) minutes
1 hours – 12 minutes = hour minutes 1 − 2 1 minutes
6
= 70 minutes = 21 minutes 49 minutes

1
1 hours − 0.35 hour = 49 minutes
6

Complete this.

5 3 1
6
6 hour – minutes = hour – hour
4
4.3.1 (i) • Encourage pupils to buy Malaysian products. 155
4.3.2 (i)
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