click below
click below
Normal Size Small Size show me how
MathTopic2
Variables, Expressions, and Properties
Term | Definition |
---|---|
Variable | A quantity that can change or vary often represented with a letter |
Algebraic Expression | A mathematical phrase that has at least one variable and one operation |
Commutative Property of Multiplication | The order in which numbers are multiplied does not change the product of the numbers |
Associative Property of Addition | The way numbers are grouped does not affect the sum |
Coefficient | The number that is multiplied by a variable in an algebraic expression. Example: for 6x t 5, the coefficient is 6 |
Substitution | To replace a variable with a number |
Commutative Property of Addition | The order in which numbers are added does not change the sum of the numbers. |
Distributive Property | Multiplying a sum (or difference) by a number gives the same result as multiplying each number in the sum (or difference) by the number and adding (or subtracting) the products. |
Identity Property of Multiplication | The product of a number and one is that number |
Identity Property of Addition | Adding zero to a number does not change the number |
Input/output table | A table of related values |
Associative Property of Multiplication | Thy way numbers are grouped does not affect the product |
Order of Operations | A set of rules mathematicians use to determine the order in which operations are performed |
Evaluate | To find ex value of an expression |