huien's answer to lisaa's Primary 6 Maths Percentage Singapore question.

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huien
Huien's answer
45 answers (Tutor Details)
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lisaa
Lisaa
4 years ago
how you get avg(5no.) how u get 5 ?
huien
Huien
4 years ago
cuz another number added to the 4 no., so total 5 number