2’s Complement Negation and Addition
To negate a number do:
- Step 1. complement the digits
- Step 2. add 1
Example
1410 = 0011102
-1410 = 1100012
+ 1
1100102
To add signed numbers use regular addition but disregard carry out
- Example 1810 - 1410 = 1810 + (-1410) = 410