What are algorithms for subtracting intregers?

Algorithms for subtracting integers typically involve direct subtraction and may include methods like borrowing for multi-digit numbers. The basic algorithm starts from the rightmost digit, subtracting corresponding digits while managing any necessary borrowing when the top digit is smaller than the bottom digit. For negative integers, the algorithm can incorporate converting the subtraction to addition by changing the sign of the number being subtracted. More complex algorithms, such as those used in computer programming, may involve binary representation and bitwise operations.