The blog postings are about the Singapore Math. The readers can learn from the postings on 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 will learn the skills of dealing with the Math Problem Solving, the Math Modeling 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.
You can read the posting on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction or Portion.
Challenge yourself with the question before look out for the given solution‼!
Upper primary school mathematics question UPQ419
Hairu and Fatimah are exchanging their stickers with each other. At first, Hairu gives 1/4 of fraction of what he has to Fatimah. Fatimah then gives 208 of her stickers to Hairu. Hairu again gives another 400 of his stickers to Fatimah. In the end, Hairu has 600 stickers and Fatimah has 720 stickers. How many stickers did Hairu have at first?
By working backward
Hairu gives 400 of his stickers to Fatimah
The number of sticker that Hairu have before that = 600 + 400 = 1000
Fatimah gives Hairu 208 stickers
The number of stickers that Hairu have before that = 1000 – 208 = 792
From the model
3 units = 792
1 unit = 264
The number of stickers that Hairu has at first = 4 × 264 = 1056