Find 16's complement of 1AF

Answer 1

The way i understand this, 16's complement is the method used to find the signed (negative) equivalent of an unsigned (positive) hex number. This involves subtracting each digit in the number from a number 1 less than the base and then incrementing the LSD (least significant digit) by 1. Since the base is 16 we must use F (15). Here goes:

1 = F-1 =14 = E

A = F-A =5 = 5

F = F-F = 0+1 (increment)

Answer = E51