| Term | Definition |
| sequence | a list of numbers according to a certain rule |
| negative numbers | numbers less than zero |
| number line | a line that shows negative, positive number and zero |
| celsius scale | freezing point is zero, boiling point is 100 degrees |
| perimeter | distance around a closed, flat shape |
| equal sign | showing that two numbers are the same |
| greater than/less than sign | showing which number is greater or less than |
| whole numbers | members of a set starting with zero and then one, two, and so on |
| even numbers | numbers that can be divided by two without a remainder |
| odd numbers | number that have a remainder of one when divided by two |
| fahrenheit scale | freezing point is 32 degrees, boiling point is 212 degrees |
| scale | a ratio that shows the relationship between a scale drawing and the actual object |
| counting numbers | natural numbers, beginning with one and so on |
| compare | decide whether the numbers are equal or which is greater or less than |
| graph | something that displays quanative information |
| histogram | special type of bar graph with equal intervals and no space between bars |
| closed option survey | survey that has limited choices |
| frequency table | way of pairing data with the number of times the data occurs |
| survey | method of collecting data about a particular population |
| open option survey | survey that does not limit the possible choices |
| place value | the value of a digit based on it's position within a number |
| operations of arithmetic | addition, subtraction, multiplication, division |
| positive numbers | numbers greater than zero |
| opposites | two numbers whose sum is zero |
| integers | counting numbers, their opposites and zero, numbers on a number line |