Additive relations A
Mathematics K–10 (2022) · Stage 3 · View this focus area on the NESA NSW Curriculum website ↗
Outcomes
MA3-AR-01 selects and applies appropriate strategies to solve addition and subtraction problemsContent dot points
Each dot point has its own page with resources matched to it.
Apply efficient mental and written strategies to solve addition and subtraction problems
- Solve word problems, including multistep problems 1 resource · 1 interactive/game
- Apply known strategies such as levelling, addition for subtraction, using constant difference, and bridging (Reasons about relations)
- Use place value to add or subtract 3 or more numbers with different numbers of digits
- Determine when it would be more efficient to use a calculator to add numbers
- Identify efficient and inefficient multidigit subtraction strategies
Use estimation and place value understanding to determine the reasonableness of solutions
- Round numbers appropriately when obtaining estimates to numerical calculations
- Use place value understanding to check for errors in calculations
- Use estimation to check the reasonableness of solutions to addition and subtraction calculations
Focus area resources
- Unit/PlanningAnnotated work samples – Stage 3, activity 1: additive relations
- Unit/PlanningAnnotated work samples – Stage 3, activity 2: additive relations
Stage 3 planning resources
Stage- or course-wide documents (scope and sequences, guides) that cover this focus area alongside others.
- Unit/PlanningSample scope and sequence – Stage 3
- Unit/PlanningMaking connections – Stage 3 (parallel content)