Free Online Calculator with Negative and Positive Signs

This free online calculator helps you perform basic arithmetic operations with negative and positive numbers. Whether you're working with temperatures, financial values, or scientific measurements, this tool ensures accurate sign handling in addition, subtraction, multiplication, and division.

What is a calculator with negative and positive signs?

A calculator with negative and positive signs is a tool designed to handle arithmetic operations where numbers can be either positive or negative. This is particularly useful in fields like physics, engineering, and finance where signed numbers are common.

Key features of such calculators include:

Proper handling of negative numbers in all operations
Clear display of results with correct signs
Memory functions for storing intermediate results
Parentheses support for complex expressions

Important Note

When working with negative numbers, remember that the sign rules apply to all operations. For example, multiplying two negative numbers yields a positive result.

How to use this calculator

Using this calculator is straightforward. Follow these steps:

Enter the first number in the first input field
Select the operation you want to perform (+, -, ×, ÷)
Enter the second number in the second input field
Click the "Calculate" button to see the result
Use the "Reset" button to clear all fields

The calculator will display the result with the correct sign based on the operation performed.

Formulas used

The calculator uses standard arithmetic formulas for each operation:

Addition

Result = Number1 + Number2

Subtraction

Result = Number1 - Number2

Multiplication

Result = Number1 × Number2

Division

Result = Number1 ÷ Number2

All operations properly handle negative numbers according to mathematical rules.

Worked examples

Example 1: Addition with negative numbers

Calculate 5 + (-3):

5 + (-3) = 2

The result is positive because the negative number has a smaller absolute value than the positive number.

Example 2: Subtraction with negative numbers

Calculate (-4) - (-2):

(-4) - (-2) = -4 + 2 = -2

Subtracting a negative is the same as adding a positive.

Example 3: Multiplication with negative numbers

Calculate (-3) × (-2):

(-3) × (-2) = 6

Multiplying two negatives yields a positive result.

Example 4: Division with negative numbers

Calculate (-10) ÷ 2:

(-10) ÷ 2 = -5

The result keeps the sign of the dividend.

FAQ

Can this calculator handle decimal numbers?

Yes, the calculator accepts decimal numbers in all input fields. Simply enter numbers with a decimal point (e.g., 3.14).

What happens if I divide by zero?

The calculator will display "Infinity" or "Undefined" when you attempt to divide by zero, as this is mathematically impossible.

Can I use parentheses in calculations?

The current version of this calculator does not support parentheses. For complex expressions, you may need to break them down into simpler steps.

Is this calculator suitable for scientific calculations?

While this calculator handles basic arithmetic with signed numbers, for more complex scientific calculations you might need specialized scientific calculators.