The blog postings are about the Singapore Math. The readers can learn from the postings about Solving the 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 UPQ529
Hairu had 72 more stickers than Sarin. After Sarin gave away ¼ of his stickers and Hairu gave away 29 sticks. Sarin has 2/3 as many stickers as Hairu.
- How many sticks did Hairu have at first?
- How many sticks did Sarin have in the end?
Start the model based on finally Sarin has 2/3 as many stickers as Hairu and work out the initial stickers model.
Sarin gave away ¼ of stickers so have to add ¼ back to the model as well as added in 29 stickers that Hairu given away.
The final model has difference of 72 stickers.
Per the model,
1 unit = 72 – 29 = 43
The number of stickers Hairu has at first = 9 × 43 + 29 = 416
The number of stickers Sarin has at the end = 6 × 43 = 258