AC Lim's answer to Yling's Primary 5 Maths Whole Numbers Singapore question.
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Hope this helps
Date Posted:
1 year ago
I saw yr working . I Abit confuse how come X2 at 3m & 4e ?
Cause we knew that she buying 6m and 4e.
So, ×2 to get 6m = 8e
Hence 6m + 4e, we replace 6m to 8e
Became 8e + 4e = 12e
As given, she have enough money to buy 28e, after use 12e, she left 21.60
So, we can use 28e - 12e = 21.60
So, ×2 to get 6m = 8e
Hence 6m + 4e, we replace 6m to 8e
Became 8e + 4e = 12e
As given, she have enough money to buy 28e, after use 12e, she left 21.60
So, we can use 28e - 12e = 21.60
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