Numeric, or numerical, expressions only contain operations involving numbers. Consider these example expressions.
| Expression | Numeric? |
|---|---|
| 5+3−2⋅8 | ✓ |
| 9w2+4s+7 | × |
The first example above is a numeric expression because it only contains numbers and operations between them. The other expression, however, contains variables. Therefore, it cannot be a numeric expression, but instead is an algebraic expression.