Sarin’s family in Kluang part 14 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about 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 can learn the skills of dealing with Math Modeling, Problem Sum from Lower Primary School to Upper Primary School level after reading the blog postings. This posting is an upper primary school math question on Problem Sum.

Read the posting on Sarin’s family in Kluang about Sarin’s family venture in Kluang.

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

Upper primary school mathematics question UPQ431

Fatimah had some money to spend in a Kluang’s shophouse that selling stationary. After spending $31 on 5 notebooks and 8 files, she was short of $0.40 if she were to buy another notebook. However, she would have $0.60 left if she were to buy one more file.

(a) How much did a notebook cost?

(b) How much money did Fatimah have?

Solution:

            Base on the left over money

UPQ431-1

            The total cost model

UPQ431-2

            From the model

            5U + 2 + 8U – 4.8 = 31

            13U = 33.8

            1U = $2.6

            The cost of 1 notebook = 2.6 + 0.4 = $3

            The amount of money Mandy has = 31 + 2.6 = $33.60

More Questions on Problem Sum. Click here….

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