Calculator

How to Use the Calculator

Perform basic arithmetic calculations with this simple and easy-to-use calculator.

Instructions

• Click number buttons (0-9) to enter numbers
• Click operation buttons (+, -, *, /) to select operations
• Click the decimal point (.) for decimal numbers
• Click "C" to clear the display
• Click "=" to calculate the result

Supported Operations

• Addition (+): Add two or more numbers
• Subtraction (-): Subtract one number from another
• Multiplication (*): Multiply two or more numbers
• Division (/): Divide one number by another
• Decimal Numbers: Use the decimal point for precise calculations

Examples

Button Functions

• Number Buttons (0-9): Input digits
• Operation Buttons (+, -, *, /): Select mathematical operations
• Decimal Point (.): Add decimal places to numbers
• Clear (C): Erase all input and start over
• Equals (=): Calculate and display the result

Calculation Order

• Operations are performed in standard mathematical order
• Multiplication and division are performed before addition and subtraction
• Use parentheses in complex expressions for specific order
• Decimal calculations maintain precision

Common Use Cases

• Quick arithmetic calculations
• Budget and financial calculations
• Percentage calculations
• Unit conversions
• Basic math homework
• Shopping and price calculations

Tips for Better Results

• Double-check your input before pressing equals
• Use the clear button to start fresh calculations
• For complex calculations, break them into smaller steps
• Verify results with mental math when possible

Error Handling

• Invalid expressions will show an error message
• Division by zero is not allowed
• Clear the display and try again if errors occur
• Check for typos in your input

Keyboard Shortcuts

• Use your keyboard number pad for faster input
• Press Enter or = key to calculate
• Use Escape or C key to clear
• Arrow keys can be used for navigation