Basic Calculator
Simple online calculator for basic arithmetic operations - addition, subtraction, multiplication, and division.
Basic Calculator Features
This simple calculator performs basic mathematical calculations including:
- Addition (+)
- Subtraction (-)
- Multiplication (×)
- Division (÷)
- Decimal operations
- Order of operations (PEMDAS/BODMAS)
- Parentheses for grouping
- Calculation history
Related Calculators
Calculator Tips
- •Use parentheses to control calculation order
- •Multiplication and division have higher priority than addition and subtraction
- •Press "AC" to clear everything, "C" to clear current input
- •Use "⌫" to delete the last entered character
How to Use the Basic Calculator
Basic Operations
The calculator follows standard order of operations (PEMDAS/BODMAS): Parentheses, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right).
Example Calculations:
3 + 5 × 2 = 13
Multiplication before addition
(3 + 5) × 2 = 16
Parentheses change order
10 ÷ 2 + 3 = 8
Division before addition
10 ÷ (2 + 3) = 2
Parentheses first
Keyboard Support
- Numbers 0-9
- Operators: +, -, *, /
- Decimal point: .
- Parentheses: (, )
- Enter or = for calculation
- Backspace to delete
- Escape to clear
Frequently Asked Questions
Does this calculator follow the order of operations?
Yes, the calculator follows standard order of operations (PEMDAS/BODMAS): Parentheses first, then multiplication and division (left to right), followed by addition and subtraction (left to right).
Can I use the keyboard to input calculations?
Yes, you can use your keyboard to enter numbers, operators, parentheses, and perform calculations. Press Enter or = to calculate, Backspace to delete, and Escape to clear.
What's the difference between AC and C buttons?
AC (All Clear) clears everything including the calculation history. C (Clear) only clears the current input while keeping the history.
How do I perform calculations with decimal numbers?
Use the decimal point button (.) to input decimal numbers. For example, enter "2.5 + 3.7" then press = to get the result 6.2.
Can I see my previous calculations?
Yes, the calculator displays up to 3 previous calculations above the current input field. These are cleared when you press AC (All Clear).