"Logical" Arithmetic on Computers with Two's Complement Binary Arithmetic Algorithms are presented for multiplication and division of unsigned integer operands in which the digits normally reserved for signs participate as significant arithmetic digits with positive weight. CACM July, 1968 Ehrman, J. R. binary arithmetic, unsigned operand arithmetic, maximum significance arithmetic, full-precision arithmetic 3.15 5.11 CA680711 JB February 22, 1978 11:34 AM 1718 5 1718 1718 5 1718 1718 5 1718 1965 5 1718 2200 5 1718 1718 6 1718 1718 6 1718