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Four-Function Calculator
A calculator for addition, subtraction, multiplication and division with brackets so you can enter longer expressions.
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About the Four-Function Calculator
A calculator for addition, subtraction, multiplication and division with brackets so you can enter longer expressions.
How to use the Four-Function Calculator
- Type the numbers and operators using the buttons. Use ( and ) to group parts of the expression.
- Press = to evaluate and C to clear.
Formula and method
The expression follows the order of operations: brackets first, then multiplication and division, then addition and subtraction.
Worked example
2 + 3 × 4 = 14, but (2 + 3) × 4 = 20.
Tips
- Close every bracket you open.
- Division by zero is not defined.
Frequently asked questions
What does BODMAS or PEMDAS mean?
A memory aid for the order of operations: brackets or parentheses, orders (powers), division and multiplication, then addition and subtraction.