Page 164 - SK Year 5 Mathematics DLP

Days and hours

1
Pattern A
1
1 days
3 Pattern B
1
2 days
4
Based on the information above, how much more time is needed to
paint batik pattern B compared to pattern A?

1 1
2 days − 1 days = days
4 3
1 1 1 × 3 1 × 4
2 days − 1 days = 2 days − 1 days
4 3 4 × 3 3 × 4
3 4
= 2 days − 1 days
12 12
27 16
= days − days
12 12
11
= day
12

1 1 11
2 days − 1 days = day
4 3 12
11
The time needed to paint batik pattern B is day more than pattern A.
12

7
2 9 days 18 hours – day = days hours
8
day hour • Convert 9 days to
7 7 3 8 42 8 days 24 hours.
8
8 day = ( × 24) hours 9 1 8
1 − 2 1 • Add 24 hours and
= 21 hours 18 hours to make 42 hours.
8 2 1
7
9 days 18 hours – day = 8 days 21 hours
8
5
Find the difference of time between 10 days and
1 6
4 days. State the answer in hours.
2

156 • Drill pupils on subtraction of time using number cards.
4.3.2 (ii)
• Surf https://rb.gy/1wlvbb