Addition and subtraction strategies (age 7+)
Your child can explain why a method works. For 67 + 24, they add 60 + 20 and 7 + 4, and can say why that gives the right answer.
In curriculum terms
Explain why addition and subtraction strategies work, using place value and the properties of operations
Ages are typical, not deadlines — follow your child’s pace. How to help at home →
How to tell they’ve got it
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Try this together
If your child works out '67 + 24' by splitting it into '60 + 20' and '7 + 4', can they explain to you in words *why* that approach gives the right answer?
Where this sits on the map
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solid = must come firstdashed = helps
Curriculum alignment
Where this fits in the official school curriculum — our best automated guess, not yet checked by a person.
Show candidate curriculum codes · 3 ACARA · 2 NSW · 3 VIC
Australian Curriculum v9 candidate
extend and apply knowledge of addition and subtraction facts to 20 to develop efficient mental strategies for computation with larger numbers without a calculator
recall and demonstrate proficiency with addition facts to 20; extend and apply facts to develop related subtraction facts
develop efficient strategies and use appropriate digital tools for solving problems involving addition and subtraction, and multiplication and division where there is no remainder
NSW syllabus codes & stages only
Victorian Curriculum 2.0 codes & levels only
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.