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.
Addition and subtraction concepts have been developed through hands-on experiences with countable objects or place value blocks. Addition is the putting together of two groups of objects and finding how many in all. Subtraction tells how many are left or how many more or less.. We say addition and subtraction are inverse operations because one operation can undo the other operation. Adding 3 and 5 to get 8 is the opposite of 8 minus 5, leaving 3. 3+5=8 and 85=3 addends sum difference.