Page 41 - MATEMATIK (JILID 2) TAHUN 3
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SUBTRACTION OF TIME
1 What is the difference in time between and ?
3 hours – 1 hour = hours
3 hours
hours
0 1 2 3
1 hour
3 hours 1 hour
3 hours – 1 hour = 2 hours
The difference in time between and is 2 hours.
2 How much longer is the time for the dance class than the
piano class?
300 minutes – 180 minutes = minutes
2 10
3 0 0 minutes Class Time
– 1 8 0 minutes Piano 180 minutes
1 2 0 minutes Dance 300 minutes
300 minutes – 180 minutes = 120 minutes
The dance class is 120 minutes longer than the piano class.
3 42 seconds – 39 seconds = seconds
3 12 42 seconds
4 2 seconds
– 3 9 seconds
3 seconds 39 seconds ?
42 seconds – 39 seconds = 3 seconds
Saiz sebenar
TEACHER’S • Emphasise to pupils to subtract using vertical form correctly. 5.5.1 5.5.1 (i)
36 NOTES • Use various methods such as bar models, paper strips, and number lines. 5.5.1 (ii)
5.5.1 (iii)
