Ray Ho's answer to Shadow's Primary 6 Maths Data Analysis Singapore question.

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Ray Ho
Ray Ho's answer
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I agree with above answer, you need to work from 1x1 to 10x10, you can also go to 12x12 but as you do the checking only 2 numbers will make sense, you can say all other combinations does not give you 149 since squares have equal sides.

In this case it is 10x10 and 7x7