This example demonstrates how to perform binary addition. Like normal decimal addition, you line the numbers up and add column-by-column. In this case, the digits being added together will be 1s and 0s, and the sum will be 1 or 0 with a possible carry of a 1. The possible combinations of additions is shown below. Remember that a carry in can be a 0 or a 1 (although the first addition, in the rightmost column, will have a carry in of 0). 
		1	1	1	1	0	0	0	0
		1	1	0	0	1	1	0	0
	+	1	0	1	0	1	0	1	0
		---------------------------------------------------------
sum:		1	0	0	1	0	1	1	0
carry out:	1	1	1	0	1	0	0	0
The following examplem comes from the textbook figure 3.6.


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