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

The total cost model

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

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