| A | B |
| fact family | a set of related facts using the same numbers |
| key | part of a pictograph that tells what each symbol stands for |
| scale | the numbers along the side or bottom of a graph which are used to help read the graph |
| area | the number of square units neeed to cover a figure exactly |
| impossible | when an event will never happen |
| bar graph | a graph that uses bars of different lengths to show data |
| pictograph | a graph that uses pictures or symbols to show data |
| perimeter | the distance around an object |
| volume | the number of cubes taht will fit into a 3-D figure |
| certain | whan an event will always happen |