 ## PRIMARY MATHS HACKS

Watch out for these tricky elements that can appear in your child’s Maths questions! Take extra care not to fall into these traps.

MATHS HACK #1

John had 12 lollipops. He shared them with 3 friends. How many lollipops does each person have?

Key word: Share (so John is included)

Incorrect: 12 ÷ 3 = 4

Correct: 12 ÷ 4 = 3 MATHS HACK #2

The total age of John and Ken is 18 years. What is the total age of John and Ken 5 years later?

Correct: 18 + 5  + 5  = 28

Key point: Add the number of years twice because there are 2 people. Add 3 times if there are 3 people. MATHS HACK #3

The distance between two trees is 8m. 5 trees are arranged in a straight line along the road. What is the distance between the first tree and the last tree?

Key point: Use your hand to identify the number of gaps between trees. The number of gaps in always 1 less than the number of points.

Correct: 4 gaps x 8m = 32m Click the following links for step-by-step video tutorials on how to solve these word problem concepts: ## CONCEPT: BEFORE AFTER

Have a look at how our Head of Mathematics, Mrs Edna Wong, explains and breaks down how to apply the Before After Concept on a Primary 4 word problem.

We hope you find the video useful! ## CONCEPT: MORE THAN, LESS THAN

Have a look at how our Head of Mathematics, Mrs Edna Wong, explains and breaks down how to apply the More Than, Less Than Concept on a Primary 3 word problem.

We hope you find the video useful! ## CONCEPT: EQUAL FRACTION

Have a look at how our Head of Mathematics, Mrs Edna Wong, explains and breaks down how to apply the Equal Fraction Concept on a Primary 6 word problem.

We hope you find the video useful! ## CONCEPT: CONSTANT IDENTITY

Have a look at how our Head of Mathematics, Mrs Edna Wong, explains and breaks down how to apply the Constant Identity Concept on a Primary 6 word problem.

We hope you find the video useful! ## PSLE MATHS

Tip #1

Know what topics are tested and plan your revision accordingly.

In general, topics can be grouped into 7 categories:

• Numbers (Whole Numbers; Fractions; Decimals)
• Measurement (Time; Volume; Area & Perimeter; Rate)
• Data Analysis (Bar Graphs; Line Graphs; Pie Charts)
• Geometry (Angles; Nets; Symmetry; Tessellation)
• Ratio & Percentage
• Speed
• Algebra Tip #2

Do NOT just revise P6 topics.

There is a tendency to focus on what is taught in P6. However, topics covered in P4 and P5 are also tested in the PSLE. For example:

• P4 – Factors & Multiples
• P5 – Average

Revise topics taught in P4 and P5 that are not covered in the P6 textbooks. Tip #3

Take note of details in the questions.

It is often easy to overlook small details that are important to the question.  ## CONCEPT: CONSTANT DIFFERENCE

Have a look at how our Head of Mathematics, Mrs Edna Wong, explains and breaks down how to apply the Constant Difference Concept on a Primary 3/4 word problem.

We hope you find the video useful! ## CONCEPT: CONSTANT TOTAL

Have a look at how our Head of Mathematics, Mrs Edna Wong, explains and breaks down how to apply the Constant Total Concept on a Primary 6 word problem.

We hope you find the video useful! ## Maths Videos

Can’t keep track of all those Maths concepts? Having trouble explaining how to solve word problems to your child?

Here is a solution! LiteracyPlus is embarking on a Maths project where we will post Maths concept videos online with our Head of Mathematics, Mrs Edna Wong, explaining and breaking down how to apply a specific Maths concept.

Our first video is on the concept Gap and Difference. Watch the concept being applied to a Primary 5 word problem. We hope you find it useful!