Addition and Subtraction
Outcomes

MA35NA

Addition and Subtraction 1

Use efficient mental and written strategies and apply appropriate digital technologies to solve problems (ACMNA291)

Add three or more numbers with different numbers of digits, with and without the use of digital technologies, eg 42 000 + 5123 + 246
Examples

Select and apply efficient mental, written and calculator strategies to solve addition and subtraction word problems, including problems involving money
Play Activities 193Examples

Record the strategy used to solve addition and subtraction word problems
Examples

Check solutions to problems, including by using the inverse operation
Play Activities 165Examples

Add three or more numbers with different numbers of digits, with and without the use of digital technologies, eg 42 000 + 5123 + 246

Use efficient mental and written strategies and apply appropriate digital technologies to solve problems (ACMNA291)

Addition and Subtraction 2

Select and apply efficient mental and written strategies and appropriate digital technologies to solve problems involving addition and subtraction with whole numbers (ACMNA123)

Solve addition and subtraction word problems involving whole numbers of any size, including problems that require more than one operation, eg 'I have saved $40 000 to buy a new car. The basic model costs $36 118 and I add tinted windows for $860 and Bluet
Examples

Record the strategy used to solve addition and subtraction word problems
Examples

Solve addition and subtraction word problems involving whole numbers of any size, including problems that require more than one operation, eg 'I have saved $40 000 to buy a new car. The basic model costs $36 118 and I add tinted windows for $860 and Bluet

Select and apply efficient mental and written strategies and appropriate digital technologies to solve problems involving addition and subtraction with whole numbers (ACMNA123)

Addition and Subtraction 1