Addition and Subtraction 1
Outcomes

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