> ## Documentation Index
> Fetch the complete documentation index at: https://docs.invoca.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Simple Number Calculations

> The four basic number functions — multiply, add, subtract, and divide — calculate numerical results in a formula.

Use simple number functions — addition, subtraction, multiplication, and division — to calculate numerical results.

| Operator       | Description                                                        | Example                              |
| :------------- | :----------------------------------------------------------------- | :----------------------------------- |
| `*` (multiply) | Returns the result of multiplying two numbers                      | `3 * 2 = 6`, `price * taxrate`       |
| `+` (add)      | Returns the result of adding two numbers                           | `1 + 2 = 3`, `price + shipping`      |
| `-` (subtract) | Returns the result of subtracting the second number from the first | `3 - 2 = 1`, `revenue - tax`         |
| `/` (divide)   | Returns the result of dividing the first number by the second      | `6 / 3 = 2`, `markup / retail price` |

## Where to go next

* [Percent calculations](/s/article/percent-calculations)
* [Formula function reference](/s/article/formula-function-reference)