Learning Map
MathematicsAddition & Subtractionusually ages 6–7

Addition and subtraction within 20

Add and subtract within 20 using strategies such as making ten, decomposing a number leading to ten, and using known facts

How to tell they’ve got it

Tick these off as you see them — no test required.

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Try this together

If your child needs to work out '8 + 6', can they split the 6 into 2 + 4, use the 2 to fill up to 10, then add the remaining 4 to get 14?

Where this sits on the map

Stuck here? Check the skills it builds on first. Confident? Here’s what it unlocks.

Builds on
Number bonds to 9ages 4–6Making-ten strategy requires knowing bonds to 10
Fluent adding and subtracting within 10ages 6–7Strategies for within-20 calculation build on fluent within-10 knowledge
Addition and subtraction within 20this skill · ages 6–7
Unlocks
Adding within 100ages 6–7Adding within 100 extends within-20 strategies to larger numbers
Fluent addition and subtractionages 6–7Fluent recall of facts to 20 builds from strategic calculation within 20
Fluent adding and subtracting within 20ages 7–8Fluency within 20 requires prior strategy-based adding/subtracting within 20
Generalising Patternsages 6–7Deriving facts within 20 from known facts (near doubles, make ten) exercises generalising from patterns
Guided Multi-Step Problem Solvingages 6–7Choosing strategies for adding within 20 requires planning and evaluating approaches

solid = must come firstdashed = helps

Curriculum alignment

Candidate matches to official curriculum codes — machine-suggested, unreviewed (v0.1).

Show candidate curriculum codes · 3 ACARA · 2 NSW · 3 VIC

Australian Curriculum v9 candidate

AC9M3A02high confidenceYear 3 · Algebra

extend and apply knowledge of addition and subtraction facts to 20 to develop efficient mental strategies for computation with larger numbers without a calculator

AC9M2A02high confidenceYear 2 · Algebra

recall and demonstrate proficiency with addition facts to 20; extend and apply facts to develop related subtraction facts

AC9M1N04high confidenceYear 1 · Number

add and subtract numbers within 20, using physical and virtual materials, part-part-whole knowledge to 10 and a variety of calculation strategies

NSW syllabus codes & stages only

MA2-AR-01high confidenceMathematics K-10 · Stage 2
MA1-CSQ-01medium confidenceMathematics K-10 · Stage 1

Victorian Curriculum 2.0 codes & levels only

VC2M3A02high confidenceMathematics · Level 3 · Algebra strand
VC2M2A02high confidenceMathematics · Level 2 · Algebra strand
VC2M2N04medium confidenceMathematics · Level 2 · Number strand

These are candidate alignments generated by semantic matching — machine-suggested and unreviewed (v0.1), not official or verified mappings. For official curriculum content see australiancurriculum.edu.au, curriculum.nsw.edu.au and f10.vcaa.vic.edu.au. Don’t rely on them for registration or compliance purposes.

Nearby on the map

Adding and subtracting tens mentallyages 6–7 Adding Three Small Numbersages 6–7 Adding two two-digit numbersages 6–7 Adding within 100ages 6–7

All Addition & Subtraction skills →