There are four rules that need to be followed when adding two binary numbers. These are: 0 + 0 = 0 1 + 0 = 1 1 + 1 = 10 (binary for denary 2) 1 + 1 + 1 = 11 (binary for denary 3) ...

Result in binary: 11001001 (which is denary 201). You can check your answers by converting each binary number into denary and checking your addition. In this example, 01010011 is 83 in denary and ...