Use common factors and multiples to solve calculations efficiently
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Why this why now
Pupils in this unit apply their understanding of factors and multiples to find common factors and multiples of two or more numbers. They use their knowledge of properties of numbers to solve problems including using factor pairs of numbers, including 100, along with understanding of the commutative and associative laws to simplify calculations and work efficiently. This work will be developed in the future when pupils look at using equivalence to calculate.
Prior knowledge requirements
- Understand the meaning of factor and multiple
- Identify factor pairs of whole numbers
- Recall multiplication facts and use times table fluency
Threads
Why this why now
Pupils in this unit apply their understanding of factors and multiples to find common factors and multiples of two or more numbers. They use their knowledge of properties of numbers to solve problems including using factor pairs of numbers, including 100, along with understanding of the commutative and associative laws to simplify calculations and work efficiently. This work will be developed in the future when pupils look at using equivalence to calculate.
Prior knowledge requirements
- Understand the meaning of factor and multiple
- Identify factor pairs of whole numbers
- Recall multiplication facts and use times table fluency
Use common factors and multiples to solve calculations efficiently
In this unit pupils will explain how to identify common factors and multiples and use this knowledge of properties of number along with knowledge of the commutative and associative laws to solve problems in a range of contexts.
5 lessons in unit
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