# Variable in an expression

**URL:** <https://community.tulip.co/t/variable-in-an-expression/76>\
**Category:** Support, Troubleshooting, & Help\
**Created:** [October 15, 2019, 7:23pm UTC](https://community.tulip.co/t/variable-in-an-expression/76 "2019-10-15T19:23:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sathya](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tulip.co/sathya/32/19_2.png) [@Sathya](https://community.tulip.co/u/Sathya)\
**Post date:** [October 15, 2019, 7:23pm UTC](https://community.tulip.co/t/variable-in-an-expression/76/1 "2019-10-15T19:23:11Z")

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How do you add a variable in an expression?

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<div class="post-metadata">

**Author:** ![gio](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tulip.co/gio/32/82_2.png) [@gio](https://community.tulip.co/u/gio)\
**Post date:** [October 15, 2019, 7:40pm UTC](https://community.tulip.co/t/variable-in-an-expression/76/2 "2019-10-15T19:40:03Z")

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@Sathya you can add a variable in the Expression Editor by typing **@variable**. Once you do this, all the variables in your app will populate in the drop down. You can then manipulate these variables (perform numeric functions, concatenate them with text, etc.).

In this example we’re adding 5 to variableOne and storing it in variableTwo:

 ![38%20PM](https://us1.discourse-cdn.com/flex020/uploads/agilemfg/original/1X/771d3775ed77cba92f484740fb3b4ecbf74604cf.jpeg)