Demi-additionneur (Half-Adder)

A B S (sum) C (carry) 0 0 0 0 0 1 0 1 1 0 0 1 1 1 1 0

Additionneur complet (Full-Adder)

A	B	C in	S	C out
0	0	0	0	0
0	0	1	1	0
0	1	0	1	0
0	1	1	0	1
1	0	0	1	0
1	0	1	0	1
1	1	0	0	1
1	1	1	1	1