# Checking Integer Addition Equation

**URL:** https://cl.desmos.com/t/checking-integer-addition-equation/5076
**Category:** Questions
**Created:** [August 10, 2023, 8:34pm UTC](https://cl.desmos.com/t/checking-integer-addition-equation/5076 "2023-08-10T20:34:01Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Isabel\_Ramirez](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/isabel_ramirez/32/3926_2.png) [@Isabel\_Ramirez](https://cl.desmos.com/u/Isabel_Ramirez)
#### Post date: [August 10, 2023, 8:34pm UTC](https://cl.desmos.com/t/checking-integer-addition-equation/5076/1 "2023-08-10T20:34:01Z")

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Hi there!  
I usually look on [CL.Desmos.com](http://CL.Desmos.com) to help with my coding.  
However, I cannot seem to find anything to help me with checking student input of a simple addition equation (for 7th grade).  
I would like to be able to check the equation that they type, such as " -17 + 5 = -12"

Here is the activity I am working on. This problem is found on Screen 5. Thank you in advance!

> **[Adding Integers on a Number Line • Activity Builder by Desmos](https://teacher.desmos.com/activitybuilder/custom/64d534b3a98d9d6e09ac300f)**
>
> by Isabel Ramirez

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### Author: ![Daniel\_Wekselgreene](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/daniel_wekselgreene/32/1819_2.png) [@Daniel\_Wekselgreene](https://cl.desmos.com/u/Daniel_Wekselgreene)
#### Post date: [August 11, 2023, 3:18am UTC](https://cl.desmos.com/t/checking-integer-addition-equation/5076/2 "2023-08-11T03:18:04Z")

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Here is one way to do it using patterns. You can change the problem by changing values of a, b, and c. [[Copy of] Adding Integers on a Number Line • Activity Builder by Desmos](https://teacher.desmos.com/activitybuilder/custom/64d58a16d11ca68fd68781a3)

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<div class="post-metadata">

### Author: ![Isabel\_Ramirez](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/isabel_ramirez/32/3926_2.png) [@Isabel\_Ramirez](https://cl.desmos.com/u/Isabel_Ramirez)
#### Post date: [August 11, 2023, 8:17pm UTC](https://cl.desmos.com/t/checking-integer-addition-equation/5076/3 "2023-08-11T20:17:38Z")

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Thank you. Is there a resource (that you know of) where I can learn more on how to code patterns?

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<div class="post-metadata">

### Author: ![Daniel\_Wekselgreene](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/daniel_wekselgreene/32/1819_2.png) [@Daniel\_Wekselgreene](https://cl.desmos.com/u/Daniel_Wekselgreene)
#### Post date: [August 12, 2023, 5:23am UTC](https://cl.desmos.com/t/checking-integer-addition-equation/5076/4 "2023-08-12T05:23:24Z")

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Desmos has a series of videos on YouTube that are very helpful for this.

https://www.youtube.com/embed/videoseries?list=PLfM6zMGnbgOGIBiEb_iChDNonjdp7sLrW&wmode=transparent&rel=0&autohide=1&showinfo=1&enablejsapi=1