Unit 2 Vocab Review

2. a mathematical sentence formed by placing an inequality symbol between two expressions
4. small number placed to the upper-right of a base number which shows how many copies of the base number are multiplied together
7. property that has any number times zero has a product of zero
8. to get bigger or become more detailed to show more value
10. to find the value of an expression by replacing each variable with a value
11. a whole number that multiplies or divides exactly with another number to make a product
13. a quantity or term that does not change its value (with no variable)
14. a letter or symbol representing an unknown number
16. property that when adding or multiplying numbers, changing the order doesn't alter the answer
17. property that when adding zero to a number and the sum remains itself or multiplying 1 to a number and the product stays the same
19. the rules to be followed when simplifying expressions
20. a mathematical phrase involving variables, numbers, and operations
21. a number or variable, or product of numbers and variables

1. a mathematical statement that two expressions are equal
3. the operation that reverses the effect of another operation
5. expressions that have the same value for every possible value of the variable
6. terms in algebraic expressions that have the same variable or raised to the same power
9. property that when adding or multiplying numbers, changing the grouping doesn't alter the answer
12. the number in front of a variable that shows how many of that variable you have
15. the replacement of numbers for variables to simplify or solve expressions and equations
18. property that sharing or "giving a hug" to each number inside parentheses, multiplying them by the number outside instead of adding them first