Ong Si Lin's answer to Ashton's Primary 4 Maths Singapore question.

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Ong Si Lin
Ong Si Lin's answer
3 answers (Tutor Details)
1st
Try using a model to visualise the process. When Elena gave 72 stickers to Diane, they have equal number of stickers, if you see from the model that 2 sets of 72 stickers equal to 3 of the original units. Hope this helps:)