| A | B |
| Divisor | The number that divides another number. |
| Dividend | The number that is being divided in in division. |
| Quotient | The result of dividing one number by another number |
| Remainder | An amount left over when one number is divided by another number. |
| Partial Quotient | A way to divide in which the dividend is divided in a series of steps, and the quotients of each step are added as the final answer. |
| Map Legend or Map Key | A diagram that explains the symbols, markings, and colors on a map. |
| Direction Symbol | Locates north, south, east, and west on the map. |
| Map Scale | A tool that helps you estimate distances between places shown on a map. |
| Magnitude Estimate | Tells whether an answer should be in the tens, hundreds, thousands, ten thousands, and so on. |
| Variable | A letter or other symbol that represents a number. |
| Open Number Sentence | A number sentence which has variables in place of one or more missing numbers and which is neither true or false |