Teo Woon Kiat's answer to Peng Chern's Primary 4 Maths Singapore question.

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Teo Woon Kiat
Teo Woon Kiat's answer
153 answers (Tutor Details)
1st
The additional 30 may be splitters into equal halves so that they have the same shell. Thus, Caleb has to give 15 to Rick. Hope this helps