Combining and separating quantities B
Mathematics K–10 (2022) · Stage 1 · View this focus area on the NESA NSW Curriculum website ↗
Outcomes
MA1-CSQ-01 uses number bonds and the relationship between addition and subtraction to solve problems involving partitioningContent dot points
Each dot point has its own page with resources matched to it.
Represent and reason about additive relations
- Create, record and recognise combinations of two numbers that add to numbers from 11 up to and including 20
- Create, model and solve word problems, using number sentences
- Represent the difference between two numbers using concrete materials and diagrams
- Represent a constant difference between pairs of numbers
- Model how addition and subtraction are inverse operations using concrete materials, drawings and diagrams
- Recall and use related addition and subtraction number facts to at least 20
Form multiples of ten when adding and subtracting two-digit numbers
- Add two-digit numbers by building to multiples of ten
- Add and subtract from a two-digit number and record on an empty number line
- Use quantity values to separate tens and ones for addition (only)
- Use an inverse strategy to turn a subtraction into an addition (Reasons about relations)
Use knowledge of equality to solve related problems
- Use number bonds to determine a missing number
- Use number knowledge to solve related problems (Reasons about relations)
- Use a variety of ways of writing number sentences
- Use number bonds to solve equality problems
Focus area resources
- Unit/PlanningAnnotated work samples – Stage 1, activity 1: combining and separating quantities
- Unit/PlanningAnnotated work samples – Stage 1, activity 2: combining and separating quantities
Stage 1 planning resources
Stage- or course-wide documents (scope and sequences, guides) that cover this focus area alongside others.
- Unit/PlanningMaking connections – Stage 1 (parallel content)
- Unit/PlanningSample scope and sequence – Stage 1