New
New
Year 2
Represent multiplication equations in different ways
I can represent multiplication equations in different ways.
New
New
Year 2
Represent multiplication equations in different ways
I can represent multiplication equations in different ways.
Lesson details
Key learning points
- The same multiplication can be represented in two different ways.
- If you have 5 groups of 2 you have 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 - An operation is commutative if the values it is operating on can be written in either order without changing the calculation.
Factor pairs - A set of two factors, which, when multiplied together, give a particular product.
Common misconception
Pupils may confuse the number of groups and group size.
Continue to use the number stems and arrays to highlight the relationship between the factors and products.
Continue to chorally chant the 2, 5 and 10 times tables at any given opportunity.
Teacher tip
Licence
This content is © Oak National Academy Limited (2024), 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 expressions 4 × 0 and 4 × 1 These have been shown with cupcakes. Which has the greater amount of cupcakes?
4 × 0
Q2.
Look at the equation 2 × 6 = 12 Select the statements that are true.
One factor is 12
The products are 2 and 6
Q3.
Match the expression to the correct product.
0
5
10
0
2
Q4.
Using what you know about 1 as a factor what is 15 × 1 =
Q5.
In this puzzle, the numbers are multiplied as shown in the middle. What is each number being multiplied by?
Q6.
In this puzzle, the numbers are multiplied as shown in the middle. What is the missing number?
Exit quiz
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6 Questions
Q1.
Look at the array below, how many groups of 2 are there? Select the expression which represents this.
3 × 2
4 × 2
6 × 2
Q2.
The order of the factors can be changed and the product remains the same. This is known as __________.
communication
commute
Q3.
Look at the equation: 5 × 6 = 30 Select the statements that are true for this equation.
The product is 6
The factor pair is 30 and 6
Q4.
Look at the arrays. Select the correct expressions that describe the groupings.
2 + 2 − 2
2 + 2 + 2
3 + 3
Q5.
Look at the array to help you fill in the gap: 5 × 2 = × 5
Q6.
Aisha and Laura have some coins. Aisha has 20 p altogether. If Aisha has two 10 pence coins and Laura has the same 10 coins, what coins must Laura have? Laura will have 10 pence coins.