Why show all operations?
For quick arithmetic checks, seeing the related operations together is faster than switching modes. Division by zero is reported as undefined instead of producing an invalid result.
Example
With 12 and 4, the calculator shows 16 for addition, 8 for subtraction, 48 for multiplication and 3 for division. This makes it easy to check a small calculation without re-entering the same numbers.
Common mistakes
Check the order of the two numbers before using subtraction or division. 12 - 4 and 4 - 12 give different results, and 12 / 4 is not the same as 4 / 12.
Limitations
This is a simple two-number arithmetic tool. For expressions with parentheses, powers, roots or several steps, use a scientific or expression calculator.
Last reviewed: 2026-05-17