Multi-age 3–6, mathematics, Year A – Unit 02

This unit introduces the big idea that addition and subtraction problems can be solved by using a variety of strategies.

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.

Students are provided with opportunities to:

  • apply place value to partition and regroup numbers for addition and subtraction problem-solving
  • explore the connection between additive relations and place value
  • recognise and explain the connection between addition and subtraction
  • select and explain efficient flexible strategies when solving problems.

Syllabus focus and content groups

Representing numbers using place value A – MAO-WM-01, MA2-RN-01

  • Whole numbers: Read, represent and order numbers to thousands
  • Whole numbers: Apply place value to partition and regroup numbers up to 4 digits

Representing numbers using place value B – MAO-WM-01, MA2-RN-01

Whole numbers: Apply place value to partition, regroup and rename numbers up to 6 digits

Additive relations A – MAO-WM-01, MA2-AR-01, MA2-AR-02

  • Use the principle of equality
  • Recognise and explain the connection between addition and subtraction
  • Select strategies flexibly to solve addition and subtraction problems of up to 3 digits

Additive relations B – MAO-WM-01, MA2-AR-01, MA2-AR-02

Partition, rearrange and regroup numbers to at least 1000 to solve additive problems

Partitioned fractions A – MAO-WM-01, MA2-PF-01

Model and represent unit fractions, and their multiples, to a complete whole on a number line

Represents numbers A – MAO-WM-01, MA3-RN-01

  • Whole numbers: Recognise, represent and order numbers in the millions
  • Whole numbers: Apply place value to partition, regroup and rename numbers to 1 billion

Additive relations A – MAO-WM-01, MA3-AR-01

  • Apply efficient mental and written strategies to solve addition and subtraction problems
  • Use estimation and place value understanding to determine the reasonableness of solutions

Additive relations B – MAO-WM-01, MA3-AR-01

Choose and use efficient strategies to solve addition and subtraction problems

Category:

  • 3-6
  • Additive relations
  • Partitioned fractions
  • Representing numbers using place value
  • Represents numbers
  • Stage 2
  • Stage 3

Business Unit:

  • Curriculum and Reform
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