Isaac Solomon Wong's answer to Frenzo's Primary 5 Maths Whole Numbers Singapore question.

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Isaac Solomon Wong
Isaac Solomon Wong's answer
49 answers (Tutor Details)
1st
A little bit of algebra, but i hope you'll understand. If i'm not wrong, you call it units in primary school. You can replace X with units, equation still solves ^_^

Maths is fun, have fun learning buddy :)