Monday, 25 February 2013

Review 1: Commom errors

Dear Parents,

Below are examples of 2 common errors seen in Review 1:

Common error 1


Pupils change fractions to like fractions for product of fractions. They were confused with addition and subtraction of fractions. For product of fractions, simply multipy across horizontally, ie, numerator with numerator and denominator with denomintor.

Common error 2

Wrong presentation.
It is mathematically wrong to write 72 ÷ (9-8)÷4  = 72 ÷ 1
It is important that their number statements make sense.

Below is an example of how the answer should be presented:

I will be going through Review 1 before I return them to the girls tomorrow.
Thank you for your kind attention.

Mrs Janet Chua

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