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
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Fact Family Find and Flip - Addition and Subtraction (Middle)
Addition and subtraction game cards demonstrating the relationship between fact families.
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1-10 Addition Flashcards - Stars (Horizontal)
One hundred and one addition flashcards with numbers 0-10.
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Spooky Sums Tarsia Puzzle – 3-Digit Addition
Practice three-digit addition skills with a Halloween pumpkin tarsia puzzle.
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3 Digit Subtraction With Regrouping Game Cards
Practise 3-Digit subtraction with regrouping strategies with a printable set of subtraction strategy task cards.
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Subtraction within 100 - Two-Digit Subtraction Puzzles
Practise subtraction strategies with a set of printable maths puzzles.
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Number Talks - Double Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.
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Number Talks - Double Digit Subtraction Task Cards
Encourage the use of mental math strategies with 2-digit subtraction number talks task cards.
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3 Digit Subtraction Game- Mathzee!
Practise subtracting 3-digit numbers with and without regrouping with a fun game of Subtraction Mathzee!
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2-Digit Subtraction Using Bar Models- Differentiated Worksheets
Review and assess your students’ subtraction skills with differentiated 2-digit subtraction worksheets focusing on the bar model strategy.
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Exploring Strategies for Subtraction PowerPoint
Explore and teach multiple subtraction strategies with an instructional slide deck
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Subtraction using Place Value Disks- Interactive Slides
Practise subtracting multiples of 100 using place value disks with an interactive drag-and-drop activity.
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Subtraction on a Number Line - Anchor Chart
Provide your students with a daily reminder of the subtraction on a number line strategy with a printable anchor chart.
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3-Digit Subtraction Strategies - Task Cards
Practise 3-digit subtraction strategies with a set of 24 subtraction task cards.
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Addition Strategies Worksheet
A worksheet to use when consolidating multiple addition strategies.
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Number Talks - Fluency to 20 Task Cards
Build number sense skills with this set of 24 task cards.
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Equation Tails Active Learning
A whole class active game that encourages learning through a physical setting.
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Parts of a Number Sentence (Addition and Subtraction) Posters
Display these posters when learning about parts of addition and subtraction number sentences
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Fact Family Find and Flip - Addition and Subtraction (Upper)
Addition and subtraction game cards demonstrating the relationship between fact families.
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Polygon Puzzles - Subtraction Worksheets with Answers
Line the sum up with the corresponding answer.
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Number Matching Puzzle - Addition
A hands-on game to play when learning about adding numbers.
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1-10 Addition Flashcards - Owls (Vertical)
One hundred and one addition flashcards with numbers 0-10.
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Candy Cane Activity - 2 Digit Subtraction Tarsia
Practise two digit subtraction with regrouping with a Tarsia Puzzle candy cane activity.
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Spooky 3-Digit Subtraction - Maze Game
Practise three-digit subtraction with regrouping skills with printable Halloween Subtraction Maze worksheets.
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Spooky 3-Digit Subtraction - Year 3 Halloween Maths Game
Practise triple-digit subtraction with regrouping with an exciting hidden picture Halloween Maths Game.
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Subtraction Mental Computation Flashcards
Build up your students' mental maths skills with a set of 36 subtraction flashcards using one- and two-digit numbers.
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Subtraction Strategies Puzzles
Practise identifying and using different subtraction strategies with a set of printable maths puzzles.
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10 to 100 Two-Digit Plus One-Digit Addition Flashcards – Stars (Horizontal)
Ninety addition 10 to 100 two-digit plus one-digit addition flashcards.
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10 to 100 Two-Digit Plus One-Digit Addition Flashcards – Stars BW (Horizontal)
Ninety addition 10 to 100 two-digit plus one-digit addition flashcards.
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Jump Strategy Subtraction Game
Learn how to use the jump strategy to solve subtraction problems with a fun subtraction game.
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1-10 Addition Flashcards - Stars BW (Horizontal)
One hundred and one addition flashcards with numbers 0-10.
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Number Talks Teaching Resource Pack - Grade 3
A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.
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Number Talks Teaching Resource Pack - Grade 2
A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.