Hairu shares his stickers part 66 (Math Question)

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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 will learn the skills of dealing with Math Question Solving, Math Modeling and Problem Sums from Lower Primary School to Upper Primary School level after read the postings. This posting is a lower primary school math question on Problem Solving.

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

Lower primary school mathematics question LPQ99

Fatimah has three times as many stickers as Hairu. Sarin has 48 fewer stickers than Hairu. If the three of them have 372 stickers altogether, how many stickers does Sarin have?

 Solution:

Draw the model,

LPQ99-1

Per the model,

5U = 372 + 48 = 420

1U = 84

Hairu has 84 stickers

The number of stickers Sarin has = 84 – 48 = 36

Alternative Solution:

Sarin’s stickers ==> 1U

Sarin has 48 fewer stickers than Hairu,

Hairu’s stickers ==> 1U + 48

Fatimah has 3 time more stickers than Hairu,

Fatimah’s stickers ==> 3U + 48 × 3 = 3U + 144

Given their total stickers = 372

LPQ99-2

Per the model,

5U = 372 – 48 × 4 = 180

1U = 36

The number of stickers Sarin has = 36

More Question on Problem Solving. Click here….

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