While adding we add from extreme right.

While subtracting we subtract from extreme right and Dont forget to take carry.

While subtracting and adding we subtract and add from extreme right and Dont forget to take carry and exchange.

While subtracting we subtract from extreme right.

While adding we add from extreme right.

While subtracting we subtract from extreme right.

While adding we add from extreme right and remeber the carry.

We start addingÂ from the extreme right i.e the Units place value.

While subtracting we subtract from extreme right.

While adding we add from extreme right and remeber the carry.