In cases where the following values may be positive or negative, the **Plus-Minus sign** is placed before the expression. In other words, there are two possible values, one obtained by addition and one obtained by subtraction. The mathematical** Plus-Minus sign ± **can be found on the Android and iPhone keyboards.

In this article, we will outline the steps to make a “Plus-Minus” sign using your Google Gboard keyboard app, the default keyboard for the Google Pixel range, and Android phones. Without further ado, here are the steps on **how to find the Plus-Minus Sign on your Android phone.**

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## How to Type the Plus−Minus Sign On Android

In order to make a **Plus-Minus Text** on an **Android** phone, follow the steps on your phone’s keyboard below:

- Tap
**?123** - Tap
**+** - Long press
**+** - You will see the
**Plus-Minus Sign**available**±**. Select it.

## How to Copy and Paste Plus-Minus Sign Text

In case you would like to save time and simply **copy and paste** the **Plus-Minus Sign**, simply click on the text below. It will copy the content to your personal clipboard, from which you can choose where to paste it.

To copy and paste the “Plus-Minus” sign text, simply click the text below and copy it on your keyboard.

Copy ± | Click here |
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## What does the Plus-Minus Sign Mean?

The use of *P* and *M* to indicate plus and minus was widespread in Europe at the beginning of the 15th century. **Plus-minus symbols** were first used mathematically by **Albert Girard**, a French-born mathematician who developed the inductive definition of Fibonacci numbers as well as some trigonometric abbreviations. It was first used in its modern form in **William Oughtred’s** *Clavis Mathematicae* in 1631.

Whenever a **±** sign appears before an expression, it indicates that the following values can either be positive or negative. Formulas may use the plus-minus symbol to denote a symbol that can be replaced with a plus or minus symbol, **either + or –**, which allows the formula to represent two values or two equations.

In other fields, it can also be used in other ways:

**Confidence Interval**– In experimental sciences, it is used to show the Confidence Interval (CI) affected by the sample size and variability.**Medicine**– In medicine, it means with or without.**Engineering**– In engineering, it indicates engineering tolerance which is the permissible limit in a physical dimension, physical property, physical space, or space.**Chess**– In chess, it indicates the advantage of the white player.**Electronics**– In electronics, it indicates a dual voltage power supply.