12345
of 5

More on MDAS

It's the same for addition and subtraction.  They are on the same level, so you just work from left to right.

Check it out:

20 - 3 + 5

Go from left to right!

20 - 3 + 5 = 17 + 5 = 22

TRY IT:

6 + 8 - 4

15 - 5 + 4 - 2 + 8