Adding and Subtracting Integers

The Adding and Subtracting Integers tool gives you a quick way to calculate totals or differences from a list of numbers. You can paste a bunch of integers positive, negative, one per line and instantly see the result. Whether you’re adding them all up or subtracting them in sequence, the tool updates automatically as you type.

You can switch between Add Integers and Subtract Integers mode using the radio buttons. The interface is clean and fast, and the output flashes when it updates so you always know it’s fresh. It works completely in your browser no reloads, no page flicker, and no lag.

You can also copy the result to your clipboard or download it as a .txt file. And if you need to start over, the Clear All button resets everything with one click.

Options

How to Use:

  1. Enter Input
    Type or paste one integer per line in the input box. Positive and negative numbers are both allowed (e.g. 10, -4, 0, 7).
  2. Choose Mode
    Use the radio buttons to select:
    • Add Integers: Adds every number together (default)
    • Subtract Integers: Starts with the first number and subtracts each one after it
  3. Watch the Result Update
    The output flashes blue as it updates automatically with every change.
  4. Use the Buttons
    • Calculate: Manually re-run the calculation
    • Copy Output: Copies the result to clipboard

What Adding and Subtracting Integers can do:

This tool is perfect for summing or sequencing numbers. You can use it to total lists of integers, compute running differences, or check your math homework. It handles any mix of positive or negative whole numbers and works in either direction add or subtract depending on your mode. The result is always clear, simple, and fast.

Example:

Input:

10
-3
5
2

Add Integers → Output:

14

Subtract Integers → Output:

6

Common Use Cases:

Use this to double-check arithmetic problems, tally up lists of gains or losses, or figure out running totals in a dataset. It’s great for students working with integers, teachers building practice sets, or anyone who just wants a quick sum or difference without opening a spreadsheet.

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