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# Common Multiples Year 6 Four Operations Learning Video Clip

## Step 10: Common Multiples Year 6 Four Operations Learning Video Clip

Renata and Buzz are studying asteroids and comets on this mission. Their work involves finding common multiples.

More resources for Autumn Block 2 Step 10.

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Discussion points for teachers

1. At what age did they start training?
Discuss the common multiples of 3 and 4 and decide which pieces of information displayed on the screen are relevant. Discuss whether the information given can lead to a single or multiple answers.
24

2. Which asteroids will each of them study?
Discuss which numbers are multiples of 3 and which are multiples of 6.5.
Renata: 24, 30, 39, 42. Buzz: 26, 39, 52

3. Are there any asteroids they will both study?
Discuss whether there are any common multiples.
39

4. What could the number be?
Discuss what is known about the number. If you write out all the multiples of 5.5 and all the multiples of 4 is there a pattern to the common multiples? Can you use this pattern to work out other possibilities. This question is open-ended for the children to explore.

5. Who is correct?
Discuss what the children are being asked to calculate i.e. the next common multiple of 16 and 12 and add this number on to 2016.
Renata

6. In case they miss it, can you work out the year of the next sighting of both comets?
Discuss whether there is an easy way of calculating the next common multiple.
2112

National Curriculum Objectives

Mathematics Year 6: (6C5) Identify common factors, common multiples and prime numbers

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