MathComputational mathNumeral systems

2s Complement

The one that puzzles

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If we are adding or subtracting two numbers in N-bit two’s complement notation, and need to carry or borrow 1 to/from the (N+1)th bit, what must we do?

Select one option from the list

Ignore that 1

Add another, (N+1)th bit

Wrap it around to the rightmost digit

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