Sarin’s family and The Great Singapore Sale Part 1 (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, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can acquire the skills to deal with the Math Modeling, the Math Problem Solving and the 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 Fraction and Problem Sum.

Read the posting on Sarin’s family and The Great Singapore Sale in the Welcome category for the story.

To read also the posting on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction.

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

Upper primary school mathematics question UPQ440

Fatimah and Hairu had $295 altogether. During The Great Singapore sale, Fatimah spent 1/3 of her money on a book while Hairu spent 2/7 of his money on a computer game. The computer game cost $23 more than the book. How much money did Fatimah have at first?

Solution:

            The computer game cost $23 more than the book

UPQ440-1

            Hairu spent 2/7 of his money on the computer and Fatimah spent 1/3 of her money on the book

            The model      

UPQ440-2

            We can redraw the model as below

UPQ440-3

            From the model

            13 units = 364

            1 unit = 28

            The amount of money Fatimah has at first = 6 × 28 – 3 × 23 = $99

More questions on Fraction. Click here…..

More questions on Problem Sum. Click here….

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