Woon Kiat's answer to Ali's Primary 6 Maths Singapore question.

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Woon Kiat
Woon Kiat's answer
322 answers (Tutor Details)
1st
Importantly, to make the number of trays and cartons the same so as to make a 1:1 comparison. Every 1T will always have 18 more than 1C, so resulting in the 774 difference. Hope this helps.