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

  1. The same multiplication can be represented in two different ways.
  2. If you have 5 groups of 2 you have 2 five times so 5 x 2 = 2 x 5
  3. Factor pairs can be written in any order.
  4. You can say that multiplication is commutative.

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.

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.

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).

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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?
An image in a quiz
4 × 0
Correct answer: 4 × 1
Q2.
Look at the equation 2 × 6 = 12 Select the statements that are true.
Correct answer: The factors are 2 and 6
Correct answer: The product is 12
One factor is 12
The products are 2 and 6
Q3.
Match the expression to the correct product.
Correct Answer:0 × 2,0

0

Correct Answer:1 × 5,5

5

Correct Answer:1 × 10,10

10

Correct Answer:0 × 5,0

0

Correct Answer:2 × 1,2

2

Q4.
Using what you know about 1 as a factor what is 15 × 1 =
Correct Answer: 15
Q5.
In this puzzle, the numbers are multiplied as shown in the middle. What is each number being multiplied by?
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Correct Answer: 0
Q6.
In this puzzle, the numbers are multiplied as shown in the middle. What is the missing number?
An image in a quiz
Correct Answer: 25

6 Questions

Q1.
Look at the array below, how many groups of 2 are there? Select the expression which represents this.
An image in a quiz
3 × 2
4 × 2
Correct answer: 5 × 2
6 × 2
Q2.
The order of the factors can be changed and the product remains the same. This is known as __________.
An image in a quiz
Correct answer: commutativity
communication
commute
Q3.
Look at the equation: 5 × 6 = 30 Select the statements that are true for this equation.
Correct answer: The factor pair is 5 and 6
The product is 6
Correct answer: The product is 30
The factor pair is 30 and 6
Q4.
Look at the arrays. Select the correct expressions that describe the groupings.
An image in a quiz
Correct answer: 3 × 2
2 + 2 − 2
Correct answer: 2 × 3
2 + 2 + 2
3 + 3
Q5.
Look at the array to help you fill in the gap: 5 × 2 = × 5
An image in a quiz
Correct Answer: 2
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.
Correct Answer: 2, 2p