Department of Computer Scien

ce and Information Engineering

National Cheng Kung University, TAIWAN

HANEL

NUMBERING AND CODING SYSTEMSSubtraction of Hex Numbers

‰If the second digit is greater than the first, borrow 16 from the preceding digitEx. Perform hex subtraction: 59F – 2B859F

LSD: 15 – 8 = 7

–2B

9 + 16 – 11 = 14 = E

16

2E

5 – 1 – 2 = 2