New
New
Year 5

Explain how to identify a common multiple of two or more numbers

I can explain how to identify a common multiple of two or more numbers.

New
New
Year 5

Explain how to identify a common multiple of two or more numbers

I can explain how to identify a common multiple of two or more numbers.

Lesson details

Key learning points

  1. A common multiple is a multiple which is shared by 2 or more numbers

Keywords

  • Multiple - A multiple is the result of multiplying a number by an integer (not by a fraction).

  • Common multiple - A common multiple is a multiple that is common to two or more numbers.

Common misconception

Pupils confuse the terminology of factors and multiples and mistake them for one another.

Spend time encouraging pupils to identify the factors in an array and within both multiplication and division equations. Make explicit that the product and dividend represent the multiple in each equation.

Encourage children to find times tables where there are plenty of common multiples. Reason why these times tables frequently have common multiples and the patterns that come with these. This will support pupils to establish quickly whether a number is divisible by another number going forward.
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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6 Questions

Q1.
Complete the missing word. factor × factor =
Correct Answer: product
Q2.
Tick the factors of 12
Correct answer: 1
Correct answer: 3
5
Correct answer: 6
7
Q3.
Tick the number that is not a factor of 25
1
3
5
Correct answer: 20
25
Q4.
Tick the number that would represent a multiple in the equation 3 × 7 = 21
3
7
Correct answer: 21
Q5.
Write the number that would represent a multiple in this equation. 42 ÷ 6 = 7
Correct Answer: 42
Q6.
Match the multiples to the times table it is a part of.
Correct Answer:5,35

35

Correct Answer:6,66

66

Correct Answer:7,21

21

Correct Answer:8,16

16

Correct Answer:9,27

27

6 Questions

Q1.
Tick the multiples of 8
Correct answer: 8
Correct answer: 24
30
42
Correct answer: 88
Q2.
Write the number that would represent a multiple in this equation. 56 = 8 × 7
Correct Answer: 56, fifty six
Q3.
Tick a common multiple of 3 and 6
3
Correct answer: 12
21
33
Q4.
Tick all the common multiples of 2 and 8
2
Correct answer: 8
Correct answer: 16
Correct answer: 32
42
Q5.
32 is a multiple of:
Correct answer: 1
3
Correct answer: 4
Correct answer: 8
Correct answer: 32
Q6.
My number is between 30 and 40 It is a multiple of 2 It is a multiple of 6 4 is a factor of this number. The sum of its digits add up to 9 What is my number?
Correct Answer: 36, thirty six