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

Read the posting on **Sarin participates in school anniversary event part 1 **for story on school anniversary.

**Upper primary school mathematics question UPQ234**

Sarin’s teacher had some sweets to distribute equally to 30 of his classmates during the school anniversary celebration. 5 of his classmates did not turn out during the celebration event and in the end the rest of them got 2 more sweets each. How many sweets did Sarin’s teacher have at first?

Solution:

5 of Sarin’s classmates did not turn up, only 25 classmates received the sweets.

The math model,

Total number of sweets remained the same

Per the model

5 units = 50

1 unit = 10 sweets

The total number of sweets that Sarin’s teacher had at first = 10 × 30 = 300

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