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When two numbers are added together in denary, we take the first number, add the second number to it and get an answer. For example, 1 + 2 = 3.
When we add two binary numbers together the process is different.
There are four rules that need to be followed when adding two binary numbers. These are:
0 + 0 = 0
1 + 0 = 1
1 + 1 = 10 (binary for 2)
1 + 1 + 1 = 11 (binary for 3)
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