Category Archives: Problem solving

Sarin’s family attend concert at the Esplanade Part 34 (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 presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn how to deal with the Math Modeling, the Math Problem Solving and the Problem Sum from Lower Primary School to Upper Primary School level. This posting is an upper primary school math question on  Fraction and Problem Solving.

The story on Sarin’s family attend concert at the Esplanade you can read postings on Sarin’s family attend concert at the Esplanade in Welcome category and Sarin’s family attend concert at the Esplanade Part 2 (Math Question).

Click and read the posting on Sarin learns the concept of Fraction (mathematics concept) to understand Portion or Fraction.

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

Upper primary school mathematics question UPQ542

In The Esplanade Library, there were 500 fiction books more than non-friction books. When more books were added to the Esplanade Library, the number of fiction books increased by ¼, while the number of non-fiction books increased by 2/3. The total number of books became 3145. How many non-fiction books were there after the increase?

Click to read the answer

Sarin learns Shapes and Solids in school 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 presents the Math Concept, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills to deal with the Math Modeling, the Math Problem Solving 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 Ratio, Shapes and Problem solving

Read the posting on Sarin learns Shapes and Solids in school (Math Concept) to know about shapes.

You should read the posting on Sarin learns the concept of Fraction (mathematics concept) to understand Portion and Fraction.

You should read the posting on Sarin learns concept of ratio in school to understand mathematics concept of Ratio.

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

Upper primary school mathematics question UPQ541

The figure below, not drawn to scale, shows 3 triangles A, B and C overlapping one another. The area of triangle A is 1/3 the area of triangle B and the area of triangle B is 2/3 the area of triangle C.

Express the blue region of triangle B as a fraction of the blue region of triangle C.

UPQ541-1

 

…Click here to go to solution…

Sarin’s family in Kluang part 22 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about 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 can learn the skills of dealing with the Math Modeling, 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 Problem solving.

Read the posting on Sarin’s family in Kluang about Sarin’s family venture in Kluang.

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

Upper primary school mathematics question UPQ540

During the visit in Kluang, Sarin’s mother bought 3 identical green caps and 5 identical blue caps from the Kluang mall. The total cost of the caps was $186. Each blue cap costs $4.40 more than each green cap. What is the cost of one green cap?

…Click here to read the solution…

Sarin and his coin bank part 52 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about 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 can learn the skills of dealing with the Math Modeling, the Math problem solving 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 Problem Solving.

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

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

Upper primary school mathematics question UPQ539

Sarin, Hairu and Fatimah have saved different amounts of money in their coin banks.

The amount of money Hairu has saved is the total of Sarin and Fatimah’s amount.

The amount of money Fatimah has saved is the total of Sarin’s amount and half of Hairu’s amount.

Sarin has saved $14.

(a)        How much does Hairu have saved?

(b)        How much do these three children have saved altogether?

…Click to know the solution…

Sarin’s family and Ramadan Part 17 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about Solving Singapore Primary School Mathematics. The blog postings present the Math Concept, Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids can learn the skills to deal with Math Modeling, Math Problem Solving and Problem Sum from Lower Primary School to Upper Primary School level. This posting is an upper primary school math question on Percentage and Problem Sum.

You can read the posting on Sarin’s family and Ramadan in Welcome page about story of Sarin’s family during Ramadan.

To read also the posting on Sarin learns Average Number, Percentage, Tables and Charts (Math Concept) to understand the concept of Percentage.

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

Upper primary school mathematics question UPQ537

Every month, Sarin’s father saved $320 of his salary and spent the rest. In the month of Ramadan, his father spending increased by 4% and only managed to save $240. How much was Sarin’s father salary?

…Click here to read the solution…

Sarin’s family and The Great Singapore Sale Part 15 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about 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 can acquire the skills to deal with the Math Modeling, the Math Problem Solving 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 Problem solving.

Read the posting on Sarin’s family and The Great Singapore Sale in the Welcome category for the story.

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

Upper primary school mathematics question UPQ536

Sarin and Fatimah went shopping during The Great Singapore Sale with a total sum of $219. Sarin spent twice as much as Fatimah. Sarin had half as much money left as Fatimah. The amount of money that Fatimah had left was $8 more than what she had spent. How much money did Fatimah have at first?

….Click here to view the solution….

Sarin and his coin bank part 51 (Math Question)

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The blog postings are about the Singapore Math. The readers can learn from the postings about 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 can learn the skills of dealing with the Math Modeling, the Math problem solving 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 Problem Solving.

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

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

Upper primary school mathematics question UPQ534

Sarin and Hairu have some amount of money in their coin banks. Sarin wanted to give some coins amount to $5 to Hairu so that they would both have the same amount of money. However, Hairu gave some coins amount to $5 to Sarin and Sarin ended up with 6 times as much money as Hairu. How much did Sarin have at first?

…Click to know the solution…

A family in Singapore part 55 (Math Question)

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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, the Math Questions with solutions that teaches in Singapore Primary Schools. You or the kids will able to acquire knowledge of dealing with the Math Modeling, the Math Problem Solving 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 Problem Sum.

You can click here and read the posting  A family in Singapore about Sarin’s family.

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

Upper primary school mathematics question UPQ532

Every household in Singapore need to pay utilities bill to the utility service provider monthly. The service provider In Singapore, the water and electrical service is provided by Singapore power. They record the number of units of water and electrical each household comsumed and sent out the statements to each household to make payment.

Sarin family recieve the monthly bill statement every end of the month and his father makes payment via the service counter.

The table below shows the rates of charges for water consumption in a month.

UPQ532-1

Sarin’s family used 44 units of water per the bill. His father paid the cashier a 50 dollar note and some 50-cent and 20-cent coins. The number of 50-cent coins is half of 20-cent coins. How many 20-cent coins did the cashier receive from his father?

…You can click here to read the solution…

Hairu shares his stickers part 69 (Math Question)

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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 Problem Sum.

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

Upper primary school mathematics question UPQ530

Sarin has 3286 stickers and Hairu has 2008 sticks. How many stickers must Sarin give to Hairu so that Hairu will have 178 more stickers than him?

…To click here to go to solution…

Hairu shares his stickers part 68 (Math Question)

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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.

  1. How many sticks did Hairu have at first?
  2. How many sticks did Sarin have in the end?

…To click here to go to solution…