Multiply 3 or more numbers (commutative and associative laws)
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Why this why now
In this unit, pupils learn how the commutative and associative laws allow for calculations to be rearranged and factors multiplied in different orders and combinations to give the same product. They use this to simplify calculations and apply it in the context of calculating volume and to solve problems in a range of contexts. This learning will be developed with factorisation also introduced as a strategy for solving multiplication calculations.
Prior knowledge requirements
- Recall basic multiplication facts
- Understand and use commutative property of multiplication
- Group numbers to simplify multiplication (associative property)
Threads
Why this why now
In this unit, pupils learn how the commutative and associative laws allow for calculations to be rearranged and factors multiplied in different orders and combinations to give the same product. They use this to simplify calculations and apply it in the context of calculating volume and to solve problems in a range of contexts. This learning will be developed with factorisation also introduced as a strategy for solving multiplication calculations.
Prior knowledge requirements
- Recall basic multiplication facts
- Understand and use commutative property of multiplication
- Group numbers to simplify multiplication (associative property)
Multiply 3 or more numbers (commutative and associative laws)
In this unit pupils will explain the use of the commutative and associative laws to rearrange and simplify calculations when multiplying three or more numbers.
5 lessons in unit
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