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Unit Differences
Age 5 to 7
Challenge Level 
Unit Differences printable sheet
This challenge is about finding the difference between numbers which have the same tens digit.
Here are two examples where I've decided to use numbers which have two tens:
The number above is always the difference between the two beneath it.
Can you find different pairs of numbers with a difference of 1 or 2 or 3 or 4 ... and so on?
Can you find more than one way of doing it?
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