The operating of shifting the leading digits of an addition into the next column to the left when the sum of that column exceeds a single digit (i.e., 9 in base 10).
Carry
See also
Addend, Addition, BorrowExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Carry." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Carry.html