Addition and Subtraction
Outcomes
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MA1-5NA
Uses a range of strategies and informal recording methods for addition and subtraction involving one- and two-digit numbers
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Addition and Subtraction 1
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Represent and solve simple addition and subtraction problems using a range of strategies, including counting on, partitioning and rearranging parts (ACMNA015)
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Use concrete materials to model addition and subtraction problems involving one- and two-digit numbers
Examples
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Use concrete materials and a number line to model and determine the difference between two numbers
Examples
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Create, record and recognise combinations of two numbers that add to numbers up to and including 9
Examples
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Create, record and recognise combinations of two numbers that add to numbers from 11 up to and including 20
Examples
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Investigate and generalise the effect of adding zero to a number, eg 'Adding zero to a number does not change the number'
Examples
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Relate addition and subtraction facts for numbers to at least 20, eg 5 + 3 = 8, so 8 - 3 = 5 and 8 - 5 = 3
Examples
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Use and record a range of mental strategies to solve addition and subtraction problems involving one- and two-digit numbers, including:counting on from the larger number to find the total of two numbers, counting back from a number to find the number rema
Play Activities 317Examples
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Use the equals sign to record equivalent number sentences involving addition, and to mean 'is the same as', rather than as an indication to perform an operation, eg 5 + 2 = 3 + 4
Examples
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Use concrete materials to model addition and subtraction problems involving one- and two-digit numbers
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Represent and solve simple addition and subtraction problems using a range of strategies, including counting on, partitioning and rearranging parts (ACMNA015)
- Addition and Subtraction 2
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Addition and Subtraction 1