Online calculator for addition, subtraction, multiplication and division.
Online calculator for addition, subtraction, multiplication and division.
An online calculator for simple mathematical operations will help you quickly perform basic calculations: addition, subtraction, multiplication and division. Convenient for students, accountants and anyone who needs to calculate directly in the browser.
Let's look at practical examples of using the calculator for various mathematical operations:
First number: 25, second number: 17
Result: 42
Minuend: 100, subtrahend: 35
Result: 65
First multiplier: 12, second multiplier: 8
Result: 96
Dividend: 144, divisor: 12
Result: 12
Addition: 3.5 + 2.7
Result: 6.2
Multiplication: 1250 × 4
Result: 5000
The calculator performs four basic arithmetic operations: addition (+), subtraction (-), multiplication (×), and division (÷). All calculations are performed with high precision and support both integers and decimals.
Ability to enter numbers and operations from the keyboard for quick calculations
Responsive design for easy use on smartphones and tablets
Supports Russian, English, Spanish and German languages
Accurate calculations with decimal support
Fast and accurate calculations, simple interface, keyboard support, multilingual, free to use.
Use the Enter key for quick calculations, check that numbers are entered correctly, and use a dot for decimals.
Enter the first number, select the addition operation (+), enter the second number and press 'Calculate' or press Enter. For example: 15 + 25 = 40.
Yes, the calculator supports the subtraction (-) operation. Enter the minuend, select the subtraction operation, enter the subtrahend and get the result.
To multiply, enter the first factor, select the multiplication operation (×), enter the second factor, and click 'Calculate'. For example: 12 × 8 = 96.
The calculator is protected from division by zero. If you try to divide by zero, you will receive the error message 'Division by zero is not possible'.
Yes, the calculator supports operations with decimal numbers. Use a period to separate the whole and fractional parts. For example: 3.5 + 2.7 = 6.2.
Yes, the calculator supports keyboard input. You can enter numbers and use the Enter key to perform the calculation.
The calculator is adapted for mobile devices with a user-friendly interface and touch input support.
The calculator is available in four languages: Russian, English, Spanish and German.
Yes, the calculator is great for school calculations, homework and checking arithmetic operations.
To check, you can perform the reverse operation or use a calculator to re-calculate with the same numbers.
Yes, the calculator supports operations with negative numbers. For example: -5 + 3 = -2 or 10 - (-3) = 13.
The calculator supports operations with large numbers. For example: 1250 × 4 = 5000 or 10000 ÷ 25 = 400.
Yes, the calculator is suitable for simple accounting calculations, calculating sums, differences and other basic operations.
The calculator automatically formats the result, removing extra zeros after the decimal point and displaying the numbers in a convenient format.
Use multiplication and division to calculate percentages. For example, 20% of 100: 100 × 0.2 = 20.
To work with fractions, convert them to decimal form. For example, 1/2 = 0.5, then use normal operations.
Yes, the calculator correctly handles operations with zero. For example: 5 + 0 = 5, 5 × 0 = 0, but division by zero is not possible.
Yes, the calculator is great for testing your arithmetic in homework assignments.
The calculator supports a dark theme with adapted colors for comfortable use in low-light conditions.
To calculate area, use the multiplication operation. For example, the area of a rectangle is: length × width = area.
The calculator automatically handles large numbers and can display them in scientific notation if necessary.
To calculate the arithmetic mean, use the operations of addition and division. For example, the average of the numbers 10, 20, 30: (10 + 20 + 30) ÷ 3 = 20.
The calculator automatically determines the accuracy of the result based on the accuracy of the input data and displays the result with the appropriate accuracy.
Yes, use multiplication and subtraction operations to calculate discounts. For example, a 20% discount: price × 0.2 = discount amount, price - discount = total price.
The calculator works with numbers in the decimal number system. To work with other systems, first convert the numbers to decimal.
To calculate proportions, use the operations of multiplication and division. For example, if 2 = 10, then 3 = (3 × 10) ÷ 2 = 15.
The calculator supports operations with very small numbers (decimals) and displays the result with appropriate precision.
To calculate VAT, use multiplication and addition operations. For example, VAT 20%: amount × 0.2 = VAT, amount + VAT = total amount.
The calculator automatically processes numbers in scientific notation and can display the results in a convenient format.
To calculate time, use addition and subtraction operations. For example, 2 hours 30 minutes + 1 hour 45 minutes = 4 hours 15 minutes.