New
New
Year 2

Explain how a multiplication equation with 2 as a factor is related to doubling

I can explain how a multiplication equation with 2 as a factor is related to doubling.

New
New
Year 2

Explain how a multiplication equation with 2 as a factor is related to doubling

I can explain how a multiplication equation with 2 as a factor is related to doubling.

Lesson details

Key learning points

  1. If 2 is a factor, you can use doubles facts to solve the problem.
  2. 2 could represent the group size or the number of groups.
  3. Identify the group size and the number of groups in the multiplication story.

Common misconception

Children may not grasp why 5 + 5 is equal to 2 × 5

Continue to use the stem sentences to help children understand doubling; 5 + 5 is the same as 2 groups of 5. This is the same as 2 × 5. Children can use a 2 times table chart to help them answer questions.

Keywords

  • Double / doubling - To become twice as many / to multiply by two.

At this point, children know doubling as an additive structure. They will now be able to represent a doubles addition equation as a multiplication equation. Remind children that doubling is the same as multiplying by 2
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.
Laura is counting in 2s. What multiple of 2 will Laura say next? 4, 6, 8,
Correct Answer: 10, ten
Q2.
Look at the image. It shows 5 groups of
An image in a quiz
Correct Answer: 1, one
Q3.
Select the correct way to complete this sentence. 2 groups of 5 can be represented as __________
two 1 pence coins
Correct answer: two 5 pence coins
two 10 pence coins
five 5 pence coins
four 10 pence coins
Q4.
Which grouping of coins shows 1 group of 10?
Correct answer: ten 1 pence coins
one 1 pence coin
Correct answer: one 10 pence coin
three 5 pence coins
four 10 pence coins
Q5.
Match the expression to the groupings it is equal to.
Correct Answer:2 × 1,1 group of 2

1 group of 2

Correct Answer:4 × 2,2 groups of 4

2 groups of 4

Correct Answer:2 × 8,8 groups of 2

8 groups of 2

Correct Answer:9 × 2,2 groups of 9

2 groups of 9

Correct Answer:10 × 2,2 group of 10

2 group of 10

Q6.
Aisha has 5 of the same coin. Laura has one coin. Laura has the same amount of money as Aisha. If Aisha’s coins are 2 p each, what is Laura’s coin? p.
Correct Answer: 10, ten

6 Questions

Q1.
Look at the image below. There are 2 groups of
An image in a quiz
Correct Answer: 3, three
Q2.
The image can be seen as 2 groups of 4 This is the same as double
An image in a quiz
Correct Answer: 4, four
Q3.
Look at the image below. You can say 5 + 5 = 10 is the same as __________
An image in a quiz
5 × 5
Correct answer: 2 × 5
2 × 2
5 × 10
Q4.
Select the correct multiplication equations which represent the image below.
An image in a quiz
1 × 3
Correct answer: 2 × 3
3 × 3
Correct answer: 3 × 2
4 × 3
Q5.
Match the expressions and descriptions so they are equal in value.
Correct Answer:3 + 3,2 × 3

2 × 3

Correct Answer:2 groups of 4,2 × 4

2 × 4

Correct Answer:5 + 5,2 × 5

2 × 5

Correct Answer:Double 6,2 × 6

2 × 6

Correct Answer:7, 2 times,2 × 7

2 × 7

Q6.
Aisha picks a number card between 1 and 12, and doubles it. The product is 14 What card did Aisha pick?
An image in a quiz
Correct Answer: 7, seven

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