Hairu shares his stickers part 45 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presents the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids will learn the skills of dealing with Math Question Solving, Math Modeling and Problem Sums from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Algebra and Problem Sum.

You can read the posting Sarin learns Symbol, Algebra and Equation in school (Math Concept) to understand the concept of Algebra.

Challenge yourself with the question before look out for the given solution‼!

Upper primary school mathematics question UPQ375

Sarin, Fatimah and Hairu share a box of stickers equally. There are n stickers in the packet. Fatimah gives 2 of her stickers to Hairu and gives 10 of her stickers to Sarin.

a. Express the number of stickers Fatimah has left in terms of n.

b. How many stickers did Hairu and Sarin have finally?

 Solution:

            They have equal number of stickers initially

            The initial model

UPQ375-1

            Each of them has stickers initially = n/3

            Total number of stickers give away by Fatimah = 2 + 10 = 12

            The number of stickers Fatimah left with = (n/3 – 12)

            The final model

UPQ375-2

            The number of stickers each of them has stickers initially = n/3

            The number of stickers Hairu and Sarin has finally = n/3 + n/3 + 12 = 2 (n/3 + 6)

            Make a Check:

            Total number of stickers = (n/3 – 12) + n/3 + n/3 + 12 = 3n/3 = n

More Questions on Algebra. Click here….

More Questions on Problem Sum. Click here….

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