AN Tutor's answer to Catherine Wee Mui Chin's Primary 3 Maths Singapore question.

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AN Tutor
An Tutor's answer
491 answers (Tutor Details)
1st
Nope, 1 large equals to 2 small. Hence instead of 1 box you could draw 2 boxes for per pack of large bag under the model. This would help you easily calculate the answer more accurately. Give it a try :)