How to do hexadecimal addition and subtraction?

Here we will discuss about solving hexadecimal addition and subtraction.

The table for hexadecimal addition is as follows:

Addition of hexadecimal numbers can be easily carried with the help of the above table.

Following example illustrates the use of the table.

Evaluate: (B A 3)16 + (5 D E)16

Solution:

We note from the table that

 3 + E = 11A + D = 1717 + 1 (carry) = 18B + 5 = 10 10 + 1 (carry) = 11 1 1 carry      B A 3      5 D E          1 1 8 1

Hence the required sum is 1181 in hexadecimal.

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Subtraction of hexadecimal numbers can be accomplished by using complement method. Although it is not a very simple method computers use it very efficiently.

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• Why Binary Numbers are Used
• Binary to Decimal Conversion
• Conversion of Numbers
• Hexa-decimal Number System
• Conversion of Binary Numbers to Octal or Hexa-decimal Numbers
• Octal and Hexa-Decimal Numbers
• Signed-magnitude Representation
• Diminished Radix Complement
• Arithmetic Operations of Binary Numbers