Stage 1, mathematics, Year B – Unit 36

This two-week unit develops student knowledge and skills in understanding the many different situations where addition, subtraction, multiplication and division can be used.

Students are provided opportunities to:

  • investigate the 4 operations through problem solving
  • explore inverse operations
  • engage in meaningful activities using repeated halving and doubling.

Representing whole numbers A – MAO-WM-01, MA1-RWN-01, MA1-RWN-02

  • Represent numbers on a line
  • Represent the structure of groups of ten in whole numbers

Representing whole numbers B – MAO-WM-01, MA1-RWN-01, MA1-RWN-02

  • Use counting sequences of ones and tens flexibly
  • Form, regroup, and rename three-digit numbers

Combining and separating quantities A – MAO-WM-01, MA1-CSQ-01

  • Use advanced count-by-one strategies to solve addition and subtraction problems
  • Recognise and recall number bonds up to ten
  • Use flexible strategies to solve addition and subtraction problems
  • Represent equality

Combining and separating quantities B – MAO-WM-01, MA1-CSQ-01

  • Represent and reason about additive relations
  • Form multiples of ten when adding and subtracting two-digit numbers
  • Use knowledge of equality to solve related problems

Forming groups A – MAO-WM-01, MA1-FG-01

  • Count in multiples using rhythmic and skip counting
  • Use skip counting patterns
  • Model and use equal groups of objects to represent multiplication
  • Recognise and represent division

Forming groups B – MAO-WM-01, MA1-FG-01

  • Represent and explain multiplication as the combining of equal groups
  • Model doubling and halving with fractions
  • Represent multiplication and division problems


Syllabus outcomes and content descriptors from Mathematics K–10 Syllabus (2022) © NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales, 2024.


  • Combining and separating quantities
  • Forming groups
  • Mathematics (2022)
  • Representing whole numbers
  • Stage 1
  • Unit

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  • Curriculum and Reform
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