2 3 4 + 5 3 5 thirds less than 2 3 4 The sum of 2 3 4 and 5 thirds The product of 2 3 4 and 5 thirds

An inverse operation is two operations that undo each other e.g. addition and subtraction or multiplication and division. You can perform the same inverse operation on each side of an equivalent equation without changing the equality. This gives us a couple of properties that hold true for all equations.