This basic online calculator works like a small handheld calculator and includes the standard four functions for addition, subtraction, multiplication and division.

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How to Use a Calculator

Calculators are essential tools for solving mathematical problems. They come in many forms, including basic online calculators, scientific calculators, and task specific tools such as long division calculators.

Most calculators support the following standard operations:

Addition (+), Subtraction (–), Multiplication (×), and Division (÷)
Enter the numbers and press the appropriate operator. For example, to calculate 10 × 4, enter 10, press ×, then 4, and finally =.

Equals (=)
Press the equals button to calculate and display the result of your equation.

Percentage (%)
Use the percent button to convert a value into its decimal form or calculate percentages.

Plus/Minus (+/−)
This button switches a number between positive and negative.

Unlike many basic calculators that process calculations strictly from left to right, the calculator above follows the order of operations, similar to a graphing calculator. You can use the Sci button to access parentheses and perform more complex calculations accurately.