Singapore · Standard Mathematics
Primary 5 maths lessons
Learn fraction multiplication, mixed-number calculations, percentages and rate. Connect triangle area, volume and angle properties to pictures and worked examples.
35 lessons and 24 interactive activities. No sign-in is needed to read or practise.
Looking for the other path? Primary 5 Foundation maths.
Primary 5 ratio, rate & percentage
- Percentage means per hundredRead a percentage as a number of parts per hundred · About 12 minutes
- A percentage of a quantityFind a percentage of a quantity · About 12 minutes
- Relate percentages to parts out of 100Relate percentages to parts out of 100 · About 12 minutes
- Convert between percentages fractions and decimalsConvert between percentages fractions and decimals · About 12 minutes
- Find a percentage of a quantityFind a percentage of a quantity · About 12 minutes
- Solve discount GST and annual-interest problemsSolve discount GST and annual-interest problems · About 12 minutes
- Interpret an amount per unitInterpret an amount per unit · About 12 minutes
- Solve problems involving rate, total amount and number of unitsSolve problems involving rate, total amount and number of units · About 12 minutes
Primary 5 whole numbers
- Read and write numbers to 10 millionRead and write numbers to 10 million · About 12 minutes
- Multiply and divide by 10, 100, 1000 and their multiplesMultiply and divide by 10, 100, 1000 and their multiples · About 12 minutes
- Use the order of operations and brackets without a calculatorUse the order of operations and brackets without a calculator · About 12 minutes
Primary 5 fractions
- Interpret a fraction as divisionInterpret a fraction as division · About 12 minutes
- Express a whole-number division as a fractionExpress a whole-number division as a fraction · About 12 minutes
- Convert fractions to decimalsConvert fractions to decimals · About 12 minutes
- Add and subtract mixed numbersAdd and subtract mixed numbers · About 12 minutes
- Multiply proper and improper fractions by whole numbersMultiply proper and improper fractions by whole numbers · About 12 minutes
- Multiply fractions by fractionsMultiply fractions by fractions · About 12 minutes
- Multiply mixed numbers by whole numbersMultiply mixed numbers by whole numbers · About 12 minutes
Primary 5 decimals
- Multiply and divide three-place decimals by powers and multiples of 10Multiply and divide three-place decimals by powers and multiples of 10 · About 12 minutes
- Convert measurements using decimalsConvert measurements using decimals · About 12 minutes
Primary 5 measurement & time
- Identify a triangle base and perpendicular heightIdentify a triangle base and perpendicular height · About 12 minutes
- Find the area of a triangleFind the area of a triangle · About 12 minutes
- Find areas of composite rectangles, squares and trianglesFind areas of composite rectangles, squares and triangles · About 12 minutes
- Measure volume with unit cubes and cm³ or m³Measure volume with unit cubes and cm³ or m³ · About 12 minutes
- Draw cubes and cuboids on isometric gridsDraw cubes and cuboids on isometric grids · About 12 minutes
- Find volumes of cubes and cuboidsFind volumes of cubes and cuboids · About 12 minutes
- Find liquid volume in rectangular tanksFind liquid volume in rectangular tanks · About 12 minutes
- Convert between litres, millilitres and cm³Convert between litres, millilitres and cm³ · About 12 minutes
Primary 5 geometry
- Use angles on a straight lineUse angles on a straight line · About 12 minutes
- Use angles around a pointUse angles around a point · About 12 minutes
- Use vertically opposite anglesUse vertically opposite angles · About 12 minutes
- Find unknown anglesFind unknown angles · About 12 minutes
- Recognise triangle types and use the angle sum of a triangleRecognise triangle types and use the angle sum of a triangle · About 12 minutes
- Use parallelogram, rhombus and trapezium propertiesUse parallelogram, rhombus and trapezium properties · About 12 minutes
- Find unknown angles without adding linesFind unknown angles without adding lines · About 12 minutes