| A | B |
| Order of Operations | The rules telling what order to do operations in |
| Variable | A quantity that can change or vary, often represented with a letter |
| Constant | A quantity that does not change |
| Expression | A mathematical phrase containing variables, constants, and operation symbols |
| Sum | The result of adding numbers |
| Difference | The result of subtracting one number from another |
| Product | The result of multiplying numbers |
| Equation | A mathematical sentence stating that two expressions are equal |
| Quotient | The result of dividing one number by another |