Vocabulary Review

1. Divide by 100
4. the amount by which a price is increased
6. the amount by which a price is decreased
8. A number that cannot be expressed as a fraction or as a repeating or terminating decimal.
9. of Operations The way in which an expression is to be evaluated--PEMDAS.
11. Notation used to represent very large or small numbers.
13. A symbol used to represent an unknown number, usually a lower case letter; y, a, b, x.
15. the set of natural numbers and zero
17. this property states that the sum or product is always the same regardless of their grouping.
19. The set of numbers that includes rational and irrational numbers.
20. this property states that the sum or product is always the same regardless of their order.
21. Value the distance from a number to zero on a number line. It is always positive.
22. Inverse this property is where the sum of any number and its opposite is zero.

2. Describes the number of times a quantity (base) is multiplied by itself
3. a statement where two expressions are equal to each other
5. The inverse of a fraction
7. Inverse this property is where the product of any number and its reciprocal is one.
10. to replace variables with numbers and then simplify an expression
12. a mathematical sentence that uses one of these symbols (<, >, ≤, ≥)
14. the set of positive whole numbers, negative whole numbers and zero.
16. A number that can be expressed as a fraction or as a repeating or terminating decimal.
18. the set of counting numbers