What does 101101 + 11011 equal? Or how about 11011011111 times 1101110111? If these questions spark interest, then Binary Adder is for you! Binary Adder not only adds binary numbers but allows you to subtract, multiply, and divide them as well. Binary Adder is a simple solution for those seeking a quick and easy way to perform basic operations on binary numbers. It is a perfect homework companion to help you check your answers. Binary adder allows you to change back and forth between several bases as well. In this way you can actually know how much 1110101 is without having to figure it out yourself. Enjoy.