| A | B |
|---|
| an ordered pair of intergers example: a/b | fraction |
| natural numbers | positive integers |
| negative numbers | negative intergers |
| allows us to keep track of debits and credits, gains and losses, degrees above zero and degrees below zero, and so on | intergers |
| needed to make accurate measurements of lengths, areas, volumes, and other quantities | rational numbers |
| nonterminating nonrepeating decimals | irrational numbers |
| a set consisting of all rational and irrational numbers | real numbers |
| number that occurs the most often in a set of data | mode |
| the middle number when data are ordered | median |
| the average of a set of numbers | mean |
| the difference between the smallest and largest data values | range |
| a sequence of digits used as a name or label | nominal numbers |
| communicates location in an ordered collection | ordinal numbers |
| the number of objects in a set | cardinal numbers |
| the number of elements in a finite (finite: having definite limits) sets | whole numbers |
| a pictorial model in which two distinict points on a line are labeled 0 and 1 | number Line |
| the top number of a fraction | numerator |
| the bottom number of a fraction | denominator |
| a measure of the region bounded by a plane curve | area |
| the measure of space taken up by a solid in three-dimensional space | volume |
