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Primary 3 | Maths
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30cm + 65cm = 95cm
65cm+ 55cm = 140cm = 1m 40cm
Note : 1000m = 1km
1km - 230m = 1000m - 230m = 770m
4km 70m - 2km 348m = 4070m - 2348m
= 1722m = 1km 722m
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