VC2M3A02
extend and apply knowledge of addition and subtraction facts to 20 to develop efficient mental strategies for computation with larger numbers without a calculator
- partitioning using materials and part-part-whole diagrams to develop subtraction facts related to addition facts, such as 8 + 7 = 15 therefore 15 − 7 = 8 and 15 − 8 = 7
- using partitioning to develop and record facts systematically (for example, ‘How many ways can 12 monkeys be spread among 2 trees?’, 12 = 12 + 0, 12 = 11 + 1, 12 = 10 + 2, 12 = 9 + 3, …), explaining how they know they have found all possible partitions
- understanding basic addition and related subtraction facts and using extensions to these facts; for example, 6 + 6 = 12, 16 + 6 = 22, 6 + 7 = 13, 16 + 7 = 23, and 60 + 60 = 120, 600 + 600 = 1200
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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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Addition on a Number Line - Jump Strategy Slide Deck
Model adding two-digit numbers with regrouping using a number line and the jump strategy with a handy instructional slide deck.
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Addition Detectives PowerPoint
An engaging 43-slide PowerPoint styled as a detective story in which students are tasked with using different addition strategies to uncover suspects.
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Addition Maze – Dog and Bone Worksheet
A worksheet to use to practise finding missing addends.
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Subtraction Sausage Dog – Worksheet
A set of superb subtraction sausage dog worksheets.
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Mental Maths Addition Posters
Use this set of addition posters in your classroom when teaching different mental maths strategies.
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Maths Activity Ideas for Parents - Addition and Subtraction
An information sheet for parents or carers to use when assisting children with addition and subtraction at home.
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Addition Strategies Posters
Create an addition strategies display"for your students with this set of classroom posters.
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Split Strategy Worksheet
Practise using the split strategy when adding two-digit numbers with this worksheet.
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100 More, 100 Less Worksheets - Cut and Paste Maths Activity
Use an understanding of place value to determine a number 100 more or less than a number with a pair of cut-and-paste maths worksheets.
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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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Bump! – Subtraction to 10 Maths Game
Practise subtraction facts to 10 with a fun maths game.
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Jump Strategy Addition Game
Practise using the jump strategy for multi-digit addition with a fun maths game.
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Bump! – Addition to 10 Game
An addition board game to help consolidate facts to ten.
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Basic Fact Cards
A set of 72 basic addition, subtraction, multiplication and division fact cards.
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Making Tens Subtraction Worksheet
Partition numbers to subtract with a printable subtraction worksheet.
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Bridging to Ten PowerPoint
A 14-slide PowerPoint that uses engaging animations to step students through the 'bridging to ten' addition strategy.
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Mental Maths Subtraction Posters
Use this set of subtraction posters in your classroom when teaching different mental maths strategies.
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Ten Add Bowling Active Learning
A whole class active game that encourages learning through a physical setting.
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Number Matching Puzzle - Division
A hands-on game to play when learning about dividing numbers.
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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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Split Strategy Addition Dominoes
A set of addition dominoes to use in the classroom when applying the split strategy.
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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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2-Digit Subtraction Game - Dominoes
Use this printable set of double-digit subtraction dominoes to practice a variety of subtraction strategies.
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Subtraction Strategies - Anchor Charts
Remind your students of the many subtraction strategies with a printable subtraction anchor chart display.
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The Addition Quest – Whole Class Game
Find the hidden gems and place their numbers into the correct positions on the worksheet to solve the sums.
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Addition Strategies Worksheet
A worksheet to use when consolidating multiple addition strategies.
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Find Your Detective Call Sign Worksheet
An addition worksheet students use to find their own special detective call sign.
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Missing Addend Addition Picture Puzzle – Level 3
Consolidate students’ addition skills with this missing addends worksheet.
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Number Talks - Three-Digit Addition Task Cards
Build number sense skills with this set of 24 task cards.