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Time to recap multiplication arrays. You may have forgotten what an array is - make sure you watch this clip:


We're going to use them to figure out multiplication and division facts. For example, if I had this array:


It's 3 across and 5 down, so it shows 3 x 5. How many dots are there? 1, 2, 3...15.


So this shows us 3 x 5 = 15, and 5 x 3 = 15.


How does it show us division? Well, if I were to take 15 and shared it into 3 equal groups (aka division by 3!) how many dots would be in each group?

3 boxes with the same amount - 5 in each box. So the division sum we get is -  

15 ÷ 3 = 5.


But wait, there's more! If I shared it into 5 equal groups (divide by 5), how many do you think each group would have?

If you said 3, congrats! 

So the other division sum this array shows is

15 ÷ 5 = 3.


See if you can have a go at working out what multiplication and division sums you can get from the arrays on the sheet below.


Multiplication and Division Arrays