Mathematics
Standard 4 · 41 topics available
Chapter 1 · Numbers and Operations
Number Value
Every digit has a value based on its place. Let's find out how much each digit is really worth!
OpenOdd and Even Numbers
Just look at the last digit to tell if a number is odd or even. It's a handy number trick!
OpenEstimation
Round the numbers first, then do easy sums to get a quick, close answer. Great for checking your work!
OpenRounding Off Numbers
5 or more, round up; 4 or less, keep it the same. Rounding makes big numbers easy to handle!
OpenNumber Patterns
Spot the rule between the numbers, then keep it going. Patterns are like number puzzles!
OpenBasic Operations Within 100 000
Add, subtract, multiply and divide big numbers by lining up the place values. Take it one column at a time!
OpenMixed Operations
Brackets first, then × and ÷, then + and −. The right order gives the right answer every time!
OpenUsage of Unknowns
Meet the mystery letter! Learn how a letter can stand for a hidden number.
OpenProblem Solving
Turn maths stories into number sentences and solve them step by step!
OpenChapter 2 · Fractions, Decimals and Percentages
Fractions
Learn to add, subtract and compare fractions with easy pizza-slice examples!
OpenDecimals
Discover the dot! Learn tenths, hundredths and how to add decimals.
OpenPercentages
Percent means out of 100. Learn to switch between fractions, decimals and %.
OpenProblem Solving
Solve real-life stories using fractions, decimals and percentages!
OpenChapter 3 · Money
Basic Operations Involving Money
Add, subtract, multiply and divide ringgit and sen like a smart shopper!
OpenMixed Operations Involving Money
Add, subtract, multiply and divide money in the right order — do × and ÷ first!
OpenFinancial Management
Learn to plan your money: income minus expenses equals your savings.
OpenResponsibility in Making Financial Decisions
Tell needs from wants and make wise, responsible choices with your money.
OpenForeign Currency
Meet money from other countries and change it to and from ringgit.
OpenPayment Instruments
Cash, cards, cheques and e-wallets — the different tools we use to pay.
OpenProblem Solving
Use 4 steps to crack money word problems: understand, plan, solve, check.
OpenChapter 4 · Time
12-Hour and 24-Hour Systems
Tell time two ways and change between a.m./p.m. and 0000–2359 clocks.
OpenDuration
Learn to work out how long an event lasts, from its start time to its end time.
OpenEstimation of Time
Learn to make sensible guesses about how long everyday activities take.
OpenRelationships Between Units of Time
Learn how seconds, minutes, hours, days and weeks connect, and change between them.
OpenBasic Operations Involving Time
Learn to add, subtract, multiply and divide time, keeping hours and minutes separate.
OpenProblem Solving
Use a simple 4-step plan to solve everyday word problems about time.
OpenChapter 5 · Measurement
Length
Learn the units of length and how to change between mm, cm, m and km.
OpenMass
Learn the units of mass, grams and kilograms, and how to change between them.
OpenVolume of Liquid
Learn litres and millilitres, and add or subtract the liquid in bottles and cups!
OpenProblem Solving
Turn measurement stories into sums using length, mass and volume with four easy steps!
OpenChapter 6 · Space
Angles
Meet acute, right and obtuse angles, and measure how much a line turns in degrees!
OpenParallel and Perpendicular Lines
Discover lines that never meet and lines that cross at a perfect right angle!
OpenPerimeter and Area
Measure the distance around a shape and the space inside it using cm and cm²!
OpenVolume of a Solid
Count unit cubes to find how much space a solid takes up, measured in cm³!
OpenProblem Solving
Use angles, perimeter, area and volume to solve real space stories step by step!
OpenChapter 7 · Coordinates, Ratio and Proportion
Coordinates in the First Quadrant
Learn to read and plot points on a grid using coordinates like (3, 2).
OpenRatio
A ratio compares amounts, like 2 red apples to 3 green apples, written 2 : 3.
OpenProportion
Proportion means two equal ratios, like 1 : 2 is the same as 2 : 4.
OpenProblem Solving
Use the 4 steps to solve word problems about coordinates, ratio and proportion.
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