VC2M3A01
recognise and explain the connection between addition and subtraction as inverse operations, apply to partition numbers and find unknown values in number sentences
- partitioning numbers using materials, part-part-whole diagrams or bar models, and recording addition and subtraction facts for each representation, explaining how each fact is connected to the materials, diagrams or models (for example, 16 + 8 = 24, 24 − 8 = 16, 8 = 24 − 16)
- using the inverse relationship between addition and subtraction to find unknown values with a calculator or by counting on; for example, representing the problem ‘Peter had some money and then spent $375. Now he has $158 left. How much did Peter have to start with?’ as □ − $375 = $158 and solving the problem using $375 + $158 = $533; or solving 27 + □ = 63 using subtraction, □ = 63 – 27, or by counting on 27, 37, 47, 57, 60, 63, so add 3 tens and 6 ones, so □ = 36
- exploring Aboriginal and/or Torres Strait Islander Peoples’ stories and dances that show the connection between addition and subtraction, representing this as a number sentence and discussing how this conveys important information about balance in processes on Country/Place
- Free Plan

Linking Addition and Subtraction Worksheet
Explore the relationship between addition and subtraction with a fact family worksheet.
- Plus Plan

Fact Family Maths Blast Off - Addition and Subtraction
Demonstrate an understanding of addition and subtraction fact families with a fun cut and sort activity.
- Plus Plan

Missing Addend Avenue - Find the Missing Number Worksheet
Practise using various subtraction strategies with a fun dice-roll math maze.
- Plus Plan

Addition and Subtraction Fact Families Teaching Presentation
A 19-page editable teaching presentation to use in the classroom when introducing addition and subtraction fact families.
- Plus Plan

Fact Family Find and Flip - Addition and Subtraction (Middle)
Addition and subtraction game cards demonstrating the relationship between fact families.
- Plus Plan

Fact Family Find and Flip - Addition and Subtraction (Upper)
Addition and subtraction game cards demonstrating the relationship between fact families.
- Plus Plan

Fact Family Find and Flip - Addition and Subtraction (Lower)
Addition and subtraction game cards demonstrating the relationship between fact families.
- Plus Plan

Subtraction Mental Computation Flashcards
Build up your students' mental maths skills with a set of 36 subtraction flashcards using one- and two-digit numbers.