Singapore · Standard Mathematics
Primary 4 maths lessons
Connect factors, multiples, mixed numbers and decimal place value. Explore composite areas, symmetry, angles, solids, nets, tables and graphs.
41 lessons and 27 interactive activities. No sign-in is needed to read or practise.
Primary 4 decimals
- Tenths, hundredths and thousandthsRead the value of each digit in a decimal · About 12 minutes
- Adding and subtracting decimalsAdd and subtract decimals with up to two decimal places · About 12 minutes
- Use decimal place value to three decimal placesUse decimal place value to three decimal places · About 10 minutes
- Compare and order decimalsCompare and order decimals · About 10 minutes
- Convert fractions to decimals when the denominator is a factor of 10 or 100Convert fractions to decimals when the denominator is a factor of 10 or 100 · About 10 minutes
- Round decimals to a whole number, one or two decimal placesRound decimals to a whole number, one or two decimal places · About 10 minutes
- Add and subtract decimals up to two decimal placesAdd and subtract decimals up to two decimal places · About 10 minutes
- Multiply and divide two-place decimals by one-digit numbersMultiply and divide two-place decimals by one-digit numbers · About 10 minutes
- Divide whole numbers with a decimal quotient and round the resultDivide whole numbers with a decimal quotient and round the result · About 10 minutes
- Express decimals as fractionsExpress decimals as fractions · About 10 minutes
Primary 4 whole numbers
- Represent and compare numbers to 100000Represent and compare numbers to 100000 · About 10 minutes
- Round to the nearest 10, 100 and 1000Round to the nearest 10, 100 and 1000 · About 10 minutes
- Estimate and check calculationsEstimate and check calculations · About 10 minutes
- Read and write number names to 100000Read and write number names to 100000 · About 10 minutes
- Continue number patterns to 100000Continue number patterns to 100000 · About 10 minutes
- Find factors of numbers up to 100Find factors of numbers up to 100 · About 10 minutes
- Find common factors of two numbersFind common factors of two numbers · About 10 minutes
- Find multiples and common multiples of one-digit numbersFind multiples and common multiples of one-digit numbers · About 10 minutes
Primary 4 operations
- Multiply up to four digits by one digitMultiply up to four digits by one digit · About 10 minutes
- Multiply up to three digits by two digitsMultiply up to three digits by two digits · About 10 minutes
- Divide up to four digits by one digitDivide up to four digits by one digit · About 10 minutes
Primary 4 fractions
- Represent mixed numbers and improper fractionsRepresent mixed numbers and improper fractions · About 10 minutes
- Convert between mixed numbers and improper fractionsConvert between mixed numbers and improper fractions · About 10 minutes
- Find a fraction of a setFind a fraction of a set · About 10 minutes
- Add and subtract fractions with denominators up to 12 using at most two different denominatorsAdd and subtract fractions with denominators up to 12 using at most two different denominators · About 10 minutes
Primary 4 measurement & time
- Find missing rectangle or square dimensions from area or perimeterFind missing rectangle or square dimensions from area or perimeter · About 10 minutes
- Find areas and perimeters of composite rectilinear figuresFind areas and perimeters of composite rectilinear figures · About 10 minutes
Primary 4 geometry
- Use angle notationUse angle notation · About 10 minutes
- Measure angles with a protractorMeasure angles with a protractor · About 10 minutes
- Draw anglesDraw angles · About 10 minutes
- Use rectangle and square properties excluding diagonalsUse rectangle and square properties excluding diagonals · About 10 minutes
- Draw rectangles and squaresDraw rectangles and squares · About 10 minutes
- Identify lines of symmetryIdentify lines of symmetry · About 10 minutes
- Complete symmetric figures on a gridComplete symmetric figures on a grid · About 10 minutes
- Represent cubes, cuboids, cones, cylinders, prisms and pyramidsRepresent cubes, cuboids, cones, cylinders, prisms and pyramids · About 10 minutes
- Draw cubes, cuboids, prisms and pyramidsDraw cubes, cuboids, prisms and pyramids · About 10 minutes
- Recognise nets of cubes, cuboids, prisms and pyramidsRecognise nets of cubes, cuboids, prisms and pyramids · About 10 minutes
Primary 4 data & graphs
- Read and interpret tablesRead and interpret tables · About 10 minutes
- Read and interpret line graphsRead and interpret line graphs · About 10 minutes
- Read and interpret pie chartsRead and interpret pie charts · About 10 minutes
- Complete tables from given dataComplete tables from given data · About 10 minutes