Question

Subtract (-7) and 1 in binary digits. What is the answer in 2's complement?

Answer 1

Answer:

To subtract a larger number from a smaller one, switch the order of the numbers, do the subtraction, then add a negative sign to the answer. For example, to solve the binary problem 11 - 100, solve for 100 - 11 instead, then add a negative sign to the answer.