AC Lim's answer to Chong's Primary 4 Maths Singapore question.
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Hope this help
Date Posted:
5 years ago
Thanks ac Lim! Can you explain a bit more on why need to change to 14u?
At 1st, Jean took 2u out of 7. (2/7)
Remaining 5u.
Watch took 7/10 out of remaining 5u., so made remaining to 10u, took 7 and balance 3.
So easier to made all (7u) to smaller unit.
Remaining 5u.
Watch took 7/10 out of remaining 5u., so made remaining to 10u, took 7 and balance 3.
So easier to made all (7u) to smaller unit.
Thank again Ac!
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