New
New
Year 2
Explain that factor pairs can be written in any order
I can explain that factor pairs can be written in any order.
New
New
Year 2
Explain that factor pairs can be written in any order
I can explain that factor pairs can be written in any order.
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Lesson details
Key learning points
- 5 groups of 2 can be said as 2, five times so 5 x 2 = 2 x 5
- Factor pairs can be written in any order.
- You can say that multiplication is commutative.
Keywords
Commutative - Multiplication is commutative. This means the order of the factors can be changed without changing the calculation or product.
Factor - A factor is a number which exactly divides another whole number.
Product - A product is the result of two or more numbers multiplied together.
Common misconception
Pupils may confuse identifying the number of groups and group size.
Use sentence stems to support children's thinking and model writing the equation, e.g. for 2 groups of 5 we can say 2 × 5 For 5, two times we can say 5 × 2
The focus of this lesson is using knowledge of multiples of two, and connecting this to adjacent multiples. Chorally rehearsing the 2 times tables at any given opportunity and playing games supports fluency.
Teacher tip
Licence
This content is © Oak National Academy Limited (2025), licensed on
Open Government Licence version 3.0
except where otherwise stated. See Oak's terms & conditions (Collection 2).Lesson video
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Starter quiz
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6 Questions
Q1.
Look at the number sequence. To find the previous multiple of 2 you must ________ 2
___, 18, 20
add
multiply
Q2.
To find the next multiple of 2 in the count you must ___ 2
20, 22, ___
subtract
multiply
Q3.
Laura is counting back in 2s. What is the previous multiple of 2? 14, 12,
Q4.
What is the missing multiple of 2? 18, , 22
Q5.
Aisha counts eyes. She knows that 9 children will have 18 eyes altogether. How many eyes will there be altogether if there are 10 children? eyes
Q6.
Match the multiplication expressions to the mixed operations so they are equal.
5 groups of 2 + 2
8 groups of 2 − 2
7 groups of 2 + 2
10 groups of 2 − 2
Exit quiz
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6 Questions
Q1.
Multiplication is __________ because we can swap the factors and still have the same product.
commute
distributive
Q2.
6 groups of 2 is the same as saying…
6, 6 times
2, 2 times
8, 2 times
Q3.
2, 3 times is the same as saying…
2 groups of 2
3 groups of 3
Q4.
Complete: 4 × 2 = 8 so × 4 = 8
Q5.
Complete: 2 × 6 = 12 so × 2 = 12
Q6.
Look at the image. Select the correct multiplication equation.
8 × 2 = 8 × 8
8 × 8 = 8 × 8
8 × 8 = 2 × 8