shortage Why can't producers increase supply if there is a sudden increase in demand? you would have to increase the price as well because otherwise it would cost too much to increase supply
Addition (often signified by the plus symbol +) is one of the four elementary, mathematical operations of arithmetic, with the others being subtraction, multiplication and division. The addition of two whole numbers is the total amount of those quantities combined. For example, in the picture on the right, there is a combination of three apples and two apples together; making a total of 5 apples.
In answer to: What is the answer to a subtraction problem called? I assume you're thinking of the result of a multiplication being called a product, and the result of an addition being called a sum. The result of a subtraction is sometimes called a difference.