What about subtraction (a – b)
{"Image DocumentName": "What about subtraction (a \u2013 b) ?", "Image ImageDescription": "Two s complement approch: just negate b and add. a - b = a + (- b) How do we negate? (- a) = comp2(a) = comp1(a) + 1. A very clever solution:", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}