Repeated addition and multiplication
Example 1
Take a look at these doughnuts, when you see this image what do you see?

We can see two calculations here.
An addition and a multiplication which means two groups of 5 is equal to 10.
5 + 5 = 10
and
2 x 5 = 10
You can rearrange objects to form both multiplication and repeated addition number sentences, and there is more than one way to represent and work out the same calculation.
Now the doughnuts have been arranged in a different way.
What calculations do you see here?

The two calculations here are a repeated addition of
2 + 2 + 2 + 2 + 2 = 10
and a multiplication of
5 x 2 = 10
This means 5 groups of 2.
Example 2
Here are 14 flowers, have a look at the slideshow to see how we can arrange them into multiplication and repeated addition sentences.
Image caption, These 14 flowers have been arranged into 4+4+4+2. Is this a multiplication calculation?
Image caption, The way the flowers have been arranged doesn’t work for a multiplication calculation because it isn’t repeated addition. For a repeated addition all of the numbers should be the same. How could we arrange the flowers for a repeated addition?
Image caption, Can you see the multiplication calculation and the repeated addition now that the flowers have been moved around?
Image caption, 2+2+2+2+2+2+2= 14 or 7 x 2 = 14. This isn’t the only way to show a multiplication calculation.
Image caption, Now the flowers have been arranged into 2 rows of 7. The calculations are 7+7 = 14 or 2 x 7 = 14.
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Activity
Try and solve the calculations in this quiz!
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