Yxcas's answer to Joy's Primary 4 Maths Singapore question.

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Yxcas
Yxcas's answer
184 answers (A Helpful Person)
1st
Cost of 1 notebook (9 - 8 notebooks)
= $3 (left) + $5 (short) = $8
Amount of money he has = ($8 x 8) + $3 = $67