# Binary addition of signed numbers.

Signed number is a way of representing positive & negative numbers in binary form where most significant bit(MSB) signifies sign.

In table below positive and negative numbers in range -7 to +7 are represented in column 1. The column 2 is signed representation. Where as the column three is for 2’s complement equivalent of negative numbers. The 2’s complement conversion is a crucial requirement for binary addition involving signed numbers. Lets review it in table below.