Using Basic Math Functions

The Paper Calculator shows results and accepts input of numbers up to a length of 11 characters. If a result is longer than 11 digits, the calculator shows it in exponential notation. You can tap on the key to toggle between positive and negative numbers. Basic math operators function like a typical desk calculator. Tap a number, an operator, another number, and an equal sign to show the answer.

If you tap the equal sign directly after the operator, the calculator performs the operation on the initial number that you tapped. For example, tap ‘6 x =’. The displayed result is 36.

If you tap more than one operator in a row, only the last operator is kept. For example, tap ‘6 x + 4 =’. The result is 10. The ‘+’ replaces the ‘x’.

If you tap the equal sign repeatedly in succession, it repeats the previous calculation. For example, tap ’3 + 4 = =’ The initial result is 7. Then, 4 is added to 7 equaling 11.