Adding decimal would almost be the same as just adding, except bring down the decimal down when you finish adding.
1
56.04
3.07
______
59.11
First we start out on the right, 4 + 7 = 11, 1 goes down while the other 1 goes on top of the zero (on the equation). 1 + 0 + 0 = 1. 6 + 3 = 9, and 5 comes down, since its by itself.
