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Mathematics / Year 7 / Number and Algebra / Number and place value

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View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Apply the associative, commutative and distributive laws to aid mental and written computation (ACMNA151)

Elaborations
  • understanding that arithmetic laws are powerful ways of describing and simplifying calculations
General capabilities
  • Numeracy Numeracy
ScOT terms

Mental arithmetic,  Distributivity,  Associativity,  Commutativity,  Written calculations

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Follow these simple calculations to illustrate the special properties of the number 9. Pick your favourite number between 1 and 9 and multiply that number by 3. Add 3 to your answer. Multiply the result by 3. Treat your two-digit answer as two separate numbers and add them together. No matter what number you pick to start ...

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MathXplosion, Ep 17: Develop mathematical mind-reading skills

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MathXplosion, Ep 40: Kaprekar's operation

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