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Content description ACMNA055

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Mathematics / Year 3 / Number and Algebra / Number and place value / ACMNA055
Content Description

Recall addition facts for single-digit numbers and related subtraction facts to develop increasingly efficient mental strategies for computation

Elaborations
  • recognising that certain single-digit number combinations always result in the same answer for addition and subtraction, and using this knowledge for addition and subtraction of larger numbers
  • combining knowledge of addition and subtraction facts and partitioning to aid computation (for example 57 + 19 = 57 + 20 – 1)
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