Expressions

2. a number written as the sum of the values of its digits
6. a variable whose value depends on the value of another variable
7. a multiplication fact can be decomposed into the sum of two smaller facts. Ex: 7 x 4 = ( 5 x 4) + (2 x 4)
8. A group of terms and operators
11. States that you can multiply factors in any order and you will always get the same product. Ex: 8 x 3 = 24 3 x 8 = 24
13. Assigning values to the variables in an expression or equation
15. the product of any number and one is that number Ex: 7 x 1 = 7
17. the result when one number is divided by another
18. A number whose value never changes
19. To calculate the value of an expression
20. A letter or symbol that represents an unknown value in an expression or equation

1. a variable whose value does not depend on another variable
3. different expressions that are equal
4. States that you can add or multiply regardless of how the numbers are grouped. Ex: ( 5 x 2) x 8 = 80 5 (2 x 8) = 80
5. The result when two or more numbers are multiplied
9. Tells how many times to use the base as a factor
10. A number used to multiply a variable
12. a rule for evaluating expressions
14. the result when two or more numbers are added
16. A part of an expression. For example, 2x and 3 are each a _____ of the expression 2x + 3.