Mathematics / Level 3 / Number and Algebra / Number and place value
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
extending strategies for addition and subtraction such as 14 + 8 + 6 = 14 + 6 + 8 = 28 and 54 – 28 = 2 + 20 + 4
combining knowledge of addition and subtraction facts and partitioning to aid computation. For example, 57 + 19 = 57 + 20 – 1
