Years 3–4 Maths (Stage 2)

Reading, writing and representing numbers up to 10000.

What each digit is worth; expanding and renaming numbers.

Using place value to compare numbers and order them on a number line.

Recognising odd and even numbers and what happens when you add them.

Bridging to ten, split strategy and jump strategy for adding in your head.

Column addition with carrying (trading) for 2- and 3-digit numbers.

Counting up, jump-back and think-addition strategies.

Column subtraction with borrowing (trading).

Choosing the operation and writing the number sentence from a story.

Equal groups, arrays and repeated addition.

Building the 2s, 4s and 8s by doubling.

Patterns in the 3s, 5s and 10s.

Sharing equally and making groups; links to multiplication.

Connecting multiplication and division facts (3 × 4 = 12, 12 ÷ 4 = 3).

Folding wholes into 2, 4 and 8 equal parts.

Unit fractions 1/3 and 1/5 of shapes and lengths.

Finding a half, third or quarter of a group of objects.

Australian notes and coins; making the same amount in different ways.

Counting up to work out change from $5, $10 and $20.

Skip-counting patterns; finding and describing the rule.

Balancing number sentences like 7 + ▢ = 15.

Choosing units, measuring and converting m/cm/mm.

Hefting, scales and comparing masses.

Measuring how much containers hold.

Distance around a shape and covering with squares.

Analog and digital clocks; minutes past and minutes to.

Morning vs afternoon times and how long events take.

Sides, corners and describing triangles, quadrilaterals, pentagons, hexagons.

Faces, edges and vertices of everyday 3D objects.

Lines of symmetry and simple transformations.

Quarter, half and full turns; comparing angles to a right angle.

Grid references, left/right/north/south and describing pathways.

Surveys, tally marks and lists.

Drawing and reading graphs with one-to-one scale.

Everyday chance language and ordering events by likelihood.

Beyond the 10 × 10 tables: the area model first, then the written algorithm and carrying.

Brackets, then multiply and divide, then add and subtract; left to right within a level. Not in Stage 2, but assumed by every OC paper.

Beyond the halving family: renaming both fractions into a shared denominator, and the compare-to-a-half shortcut.

Counting past one whole, and converting between improper fractions and mixed numerals in both directions.

Thousandths, comparing decimals of different lengths, and rounding to two places. Stage 2 stops at two.

Inverse operations, and undoing a chain of machines in reverse order to find the starting number.

The kilometre, converting to and from metres, and choosing a sensible unit for a distance.

Stage 2 measures and compares area; calculating it from side lengths is Stage 3. Built from counting rows of squares.

Layers of cubes leading to length × width × height, and the link between cubic centimetres and millilitres.

The gram-kilogram-tonne ladder, two-step conversions, and picking the unit that keeps the number sensible.

Counting through to 23:59, converting pm times by adding 12, the midnight and midday special cases, and reading timetables.

Measuring angles in degrees, the five angle names including reflex, and finding a reflex angle by subtracting from 360.

Cells that answer two questions at once, row and column totals, finding a missing value two ways, and NOT questions.

When a line beats columns, reading values and shape, timelines as number lines of years, and misleading scales.

Extending the place-value chart past the ones column into tenths and hundredths, and the zero that holds a column empty.

Why 0.7 beats 0.65: comparing column by column from the left, and evening up the places with zeros.

A decimal is a fraction with 10 or 100 on the bottom. The hundred grid, and the six conversions worth memorising.

Cents as hundredths of a dollar, reading a price, and adding, subtracting and giving change with the points lined up.