P4/P5 Math: Cutting out Smaller Squares from Larger Rectangle (Area)

Cutting out smaller squares from a larger rectangular sheet of paper requires students to remember that there may be "wastage" involved.

Common multiples may be employed to check if there are wastage.

Such questions usually appear in P3 and P4 exams in Section C.

Plots of land divided into smaller rectangles

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P3/P4 Math: Internal Transfer (Make Equal)

"Total unchanged", more commonly known as , "Internal Transfer", requires students to draw "before and after" comparison models in order to solve "visually"

Such questions usually appear in Section C of P3 and P4 exam papers.

Janice has 225 candy bars and Kenny has 99 candy bars.

How many candy bars must Janice give Kenny

so both will have the same number of candy bars?

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P4 Math: Common Multiples

Common Multiples are taught in P4 and requires students to be familiar with the multiplication tables.

Such questions often appear in Section C of P4 exam papers.

Rick and Marge are at the bottom of a flight of stairs.

Rick placed a stone at every 3rd step he reached along the stairs.
Marge placed a stone at every 5th step she reached along the stairs.

Which is the first step along the stairs that will contain 2 stones?

Spiral Staircase

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P5/P6 Math: Two Overlapping Identical Rectangles

The concept of overlapping shapes can also be found over in these questions.

Such questions require the concept of constant difference and will usually appear in Paper 2.

Calculator usage is allowed.

Overlapping of Red and Blue and Green lights to obtain White light

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Diagram may not be drawn to scale

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P4/P5/P6 Math: Did you know spelling is tested for Math exams?

The spelling for the days of the week and the months of the year are taught in Primary 1 Math.

Answers that requires students to write down the day of the week or month of the year cannot be written down in its abbreviated form.

ie

Thu instead on Thursday,

Feb instead of February,

will get no marks at worst or some marks deducted at least..

Such questions often appear in P5 and P6 Paper 1.
Calculator usage is not allowed.

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P3/P4 Math: Areas and Perimeters of Squares

Areas and Perimeters of shapes such as squares and rectangles are taught in P3 and P4.

Though the formula is easy to remember, this becomes more challenging when the length of a square is not given but with the perimeter or area, students are expected to find the other.

(if given perimeter of square, find area.)

A similar version of this question for "rectangles" can be found here.

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P5/P6 Math: 4 Unequal Triangles in a Rectangle

This question will test the concept of "Triangles in Rectangle" for both P5 and P6 students.

The most famous triangles in the world are in Eygpt

A triangle is half the area of the rectangle that it shares its base and height with.

But what if there are 4 unequal triangles inside the rectangle that meets "not" at the centre of this rectangle?

Such questions usually appear in Paper 1.

Calculator usage is not allowed.

Diagram may not be drawn to scale

The rectangle above is made up of 4 triangles of unequal areas.

The areas of 3 of the triangles are as shown.

What is the area of triangle D?

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