**2.**The numbers being added.**3.**The set of positive whole numbers, their opposites and 0.**4.**This property of addition states that the sum of any number and zero is that number.**6.**A number that can be written as a ratio of two integers and the denominator is not zero.**9.**To express in simplest terms.**10.**Product The product of one numerator and the opposite denominator in a proportion.**11.**What type of decimal stops.**16.**This property of addition states that changing the grouping of the addends doesn't change the sum. (Grouping does not matter.)**18.**The Identity property of _____ states that the product of any number and one is that number.**19.**The opposite. Also, operations that undo each other.**20.**Value Tells you the value of a digit based on its place in a particular number.**22.**The numerical factor of a term that contains a variable.**23.**The top number in a fraction.**24.**This type of fraction has a numerator greater than the denominator.

**1.**A portion of 100.**5.**The bottom number in a fraction.**7.**Parts of an expression that are separated by addition or subtraction.**8.**A number's distance from zero.**12.**The answer to a subtraction problem.**13.**A ratio or comparison of two quantities with different units.**14.**This property shows how multiplication affects an addition and subtraction problem.**15.**Lines that run from left to right.**17.**To replace each variable with a number and then follow the order of operations.**20.**The answer to a multiplication problem.**21.**The smallest multiple that 2 or more numbers have in common.