2.4 Binary number calculation
2.4.1 Addition
The simplest arithmetic operation in binary is addition. Adding two single-digit binary
numbers is relatively simple:
(i) 0+0=0
(ii) 0+1=1
(iii) 1+0=1
(iv) 1+1=0 ; Carry =1
This is 2-digit addition example.
The format of Binary adder with carry can show below.
1 1
0 1
+
1 0 0
(i) 1 0 (ii)
0 1
+
1 1
1 1
1 1
+
1 1 0
(iii)
Carry in Denominator Adder Result Carry out
0 + 0 + 0 = 0 0
1 + 0 + 0 = 1 0
0 + 1 + 0 = 1 0
1 + 1 + 0 = 0 1
0 + 1 + 1 = 0 1
1 + 1 + 1 = 1 1