Use equivalence and compensation to simplify and solve addition calculations
Use equivalence and compensation to simplify and solve addition calculations
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Why this why now
In this unit pupils build on their understanding of additive structures by exploring equivalence in addition equations. They will learn how redistribution can be used to support calculation with whole numbers and decimals. Pupils will calculate missing parts in balanced equations, applying known facts and strategies in a range of contexts. They will then go on to explore equivalence and compensation in subtraction.
Prior knowledge requirements
- Recognise number pairs and place value relationships
- Apply rounding and adjusting strategies
- Understand and apply fact families
Threads
Why this why now
In this unit pupils build on their understanding of additive structures by exploring equivalence in addition equations. They will learn how redistribution can be used to support calculation with whole numbers and decimals. Pupils will calculate missing parts in balanced equations, applying known facts and strategies in a range of contexts. They will then go on to explore equivalence and compensation in subtraction.
Prior knowledge requirements
- Recognise number pairs and place value relationships
- Apply rounding and adjusting strategies
- Understand and apply fact families
Use equivalence and compensation to simplify and solve addition calculations
In this unit pupils used the concept of same sum to simplify and solve addition problems.
10 lessons in unit
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