P6 2020 Raffles Girls Prelims Q16 - Ratio Fractions| Mdm Nurul Red Green apples | PSLE Maths

P6 2020 Raffles Girls Primary School Prelims Question 16
Ratio Fractions Before After Problem Sum - 5 Marks

This Channel contains answers to all the types of PSLE Math questions and how to solve them.
Make sure you like and subscribe this youtube channel as I will be updating this channel with more types of PSLE Math questions.

1. Remainder Concept (Branching)
The first type of common PSLE Math questions is on remainder concept. This is usually tested in Fractions and Percentage questions for PSLE Math. When you see the keyword “remainder”, I recommend you to use this method called “Branching”.

2. Equal Fractions Concept
I have seen this concept being tested so many times in PSLE Math and yet, so many students failed to identify or apply the concept correctly. In this concept, you basically need to make the numerator the same and compare the denominator.

3. Model Drawing Concept

Model drawing is used extensively in Singapore Math. I recommend you to use this method when you see the word “more than” or “less than” in Fractions questions. Watch the video below to learn how to cut models to compare them easily.

4. Constant Part Concept

The next type of common PSLE Math questions is on Constant Part Concept which is commonly tested in Ratio questions. The word “Constant” means remain the same. You need to identify the part which remain constant and make them equal in both ratios.

4a. Constant Total Concept

Under questions which involve “Internal Transfer”, the total remains the same. You can apply this concept when you see this type of PSLE Math questions.

4b. Constant Difference Concept

For questions relating to age, the age difference between 2 people will always remain the same.

5. Everything Changed Concept (Units and Parts)

This is a more challenging type of PSLE Math questions. Both sides of the ratio changed by different amounts. I recommend “Units and Parts” to solve this type of questions.

6. Part-Whole Concept

This is another common type of PSLE Math questions which you need to use one part to find one whole.

7. Excess and Shortage Concept

This type of questions again!! It always come out in my exams and I always don’t know how to do!”

Thank goodness you have stumbled onto this Youtube channel!!
Learn the excess and shortage method below to tackle this type of questions.

7. Gap and Difference Concept

This type of PSLE Math questions requires you to find the difference and use it to solve the question.

8. Grouping Concept

This is another common concept which needs you to group items together, followed by finding the total number of groups.

9. (Number x Value) Concept

Under this concept, you multiply the number of units by the value of each unit to find the total value of 1 group. From here, you can find the total number of groups.

10. Guess and Check / Assumption Concept

Assumption method is taught in many schools and it is a much faster and efficient way to do compared to guess and check.

11. Working Backwards Concept

The next type of common PSLE Math questions is “Working Backwards”. In this question, you are given the final value and you need to work backwards to find the starting value.

12. Simultaneous Equations Concept

In this type of PSLE Math questions, you need to form 2 equations to solve for 2 unknowns.

13. Double 'IFs' Concept

This is another type of PSLE Math questions which most students get stuck in. It involves 2 “ifs” which represent 2 scenarios.

14. Average Concept

The average concept is a simple concept, “Total Amount = Average × Number of Items”. But the questions can be pretty challenging. I share a common type of PSLE Math questions in the videos.

Get answers to all types of PSLE Math Questions in our PSLE MATHS YOUTUBE CHANNEL

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[shreyasoutlook]

Thank you. This question really improved my math!

[mohammedhaaziq]

Q9 11 singapore hokkien huay kuan prelim 2017