Boy Mow Chau's answer to Yx._-tan's Secondary 1 Maths Singapore question.

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Boy Mow Chau
Boy Mow Chau's answer
317 answers (Tutor Details)
here is the way to solve Q11 & Q13 by calculation.

when learning maths, once you understand the concept behind it, then you can solve many of your problems by proper calculation.