The blog postings are about the Singapore Math. The readers can learn from the postings on Solving Singapore Primary School Mathematics. The blog presenting the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skill 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 a lower primary school math question on Problem Sum.

You can read posting **Sarin and his coin bank** on the story of coin bank.

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

**Lower primary school mathematics question LPQ79**

Sarin has $636 in his coin bank. His saving is 3 times as much as than Hairu. What is the sum of the boy’s saving?

Solution:

Sarin’s saving is 3 times of Hairu’s saving

Draw the Math Model

Per the model

3 units = 636

1 unit = $ 636 ÷ 3 = $212

The sum of the boy’s saving = 4 × 212 =$848

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