Tutor May Ho, Ex MOE Trained's answer to Amir's Primary 5 Maths Area & Volume Singapore question.

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Tutor May Ho, Ex MOE Trained
Tutor May Ho, Ex Moe Trained's answer
63 answers (Tutor Details)
1st
The pattern for squares are counting numbers. Use the pairing method -- number of pairs x (the 1st number x last number) to work out ' 1+2+3+4.... +98+99+100. Hope you understand.