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.
*** Just as your sister/brother s children are your children s cousins, addition is related to subtraction via the term inverse property. Subtraction is the inverse property of addition. In other words, subtraction is the opposite of addition. We can undo the work of addition by subtracting.