Negative Number Sum Calculator

Easily add multiple negative numbers and visualize the result. Just enter the numbers and let us do the math!

Enter Negative Numbers

Type in the negative numbers you want to add, separated by commas (e.g., -5, -10, -3).

Result

Sum:

Visualization of Sum

Visual representation of each negative number and their cumulative sum.

Red bars represent the input negative numbers, and the green bar shows their sum. Bar height is proportional to the absolute value of the number.

Understanding Negative Number Addition

Adding negative numbers is similar to moving further left on the number line. For example, if you start at 0 and add -3, you move 3 units to the left, ending at -3. If you then add another -2, you move 2 more units left, ending at -5. Therefore, -3 + (-2) = -5. Think of it as accumulating debt; each negative number adds to your total debt. This tool helps you quickly calculate the total sum of multiple negative values.

Definition: A negative number is a real number that is less than zero.
Rule for Addition: To add negative numbers, add their absolute values and keep the negative sign.
Example: Calculate -4 + (-7). First, add the absolute values: |4| + |7| = 4 + 7 = 11. Then, keep the negative sign. So, -4 + (-7) = -11.

For more in-depth information, you can explore resources like Math is Fun - Negative Numbers or Khan Academy - Adding Negative Numbers.