| A | B |
| The relative worth of each digit in a number, which is relative to its position. | Place Value |
| Adding left to right, column by column. | Partial Sums |
| Subtracting left to right, column by column. | Partial Differences |
| The answer to an addition problem. | Sum |
| The answer to a subtraction problem. | Difference |
| Add, subtract, multiply, and divide are examples of this. | Operations |
| A sentence made up of at least two numbers, a relation symbol, and an operation symbol. | Number Sentence |
| Less than, greater than, and equal to are examples of this. | Relation Symbols |
| A letter in a number sentence that is unknown is called this. | Variable |
| Minimum, Maximum, Median, Mode, and Range are examples of this. | Landmarks |
| A number from 0 to 1 that indicates how likely an event will occur. | Probability |
| Determining if a solution will fall in the hundreds, thousands, or ten thousdands is an example of this. | Magnitude Estimate |
| Multiplying left to right, column by column is an example of this. | Partial Products |
| Creating a box with enough spaces as digits to muliply is what? | Lattice Method |