Division of Integers

Core concept

For example, (-12) ÷ (-3) = 4 (same sign, so positive), while 12 ÷ (-3) = -4 (different signs, so negative). Since division and multiplication are inverse operations, checking a division answer by multiplying the quotient back by the divisor (and confirming it gives the original dividend) is a useful way to verify integer division calculations are correct, especially when dealing with negative numbers where sign errors are common.