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

Outcomes

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

Play Activities 11

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

Play Activities 193

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

Play Activities 21

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

Play Activities 165

Examples