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Subtraction of Signed Numbers

Here are two more examples:

20 - -3 = 20 + 3 = 23

 

8 - -2 = 8 + 2 = 10

How easy is that?

Your turn:

4 - -5 =

6 - -18 =

0 - -3 =

Now, we can do some really cool problems!

5 - -3 - 8 =

Rewrite it:

5 - -3 - 8 = 5 + 3 - 8 = 0