Published by Epsilon Development

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Why should I report an Issue with Math: Long Subtraction?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of Epsilon Development to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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Math Customer Insights

1. It does not happen for the premium versions of Addition, Multiplication and Division apps which I also purchased.Epsilon Developers don't care.

2. Uninstall all 3 versions after 3 minutes.Fantastic apps!!! With these apps' help my 4 year old sharpened his long addition, long subtraction, long multiplication and long division skills!!!Not how I was taught in elementary school.

3. Addition! I was never any good at basic arithmetic at school, if you couldn't keep up the nuns put you in remedial math, so I lost all interest.

4. I don't get what's the point.Many steps (drag and drop), GUI not good, only 1 exercise per session (demo?), time effiency zero, has to spend perhaps 1h but train maybe just 10-20 exercises.

5. I like how the subtraction tells you if you're right are wrong because the talking voice it's perfect for just me I love this alote πŸ˜€πŸ˜€πŸ˜€πŸ˜€πŸ˜€πŸ˜€Too many ads and difficult part is not working.

6. However, the button to purchase the premium version is still shown.

7. I love these mathematical quizzes, not only has my confidence boosted, but I have grasped the concept of long division as well.

8. I paid for the premium version and still asking to buy the premium version.

9. I purchased the premium version.

10. This app is very weird.Excellent practice app for long subtraction and addition.

11. By the way, you must repeatedly select training mode or learning mode then press go for each question.

Steps to Troubleshoot & Fix Math Issues

1. Fix Math Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart Math: Restarting the app will resolve most errors.
  2. Update the Math App. Here is how:
    1. On Android goto PlayStore » Search for "Math" » Open Math: Long Subtraction » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for Math » click "UPDATE".
  3. Clear Math: Long Subtraction app cache: Clearing cached data will force your app to retrieve the latest data directly from Math servers.
    1. On Android, goto Settings » Apps » Select "Math: Long Subtraction" » click Storage » click "Clear Cache".
  4. Check Math app permissions. If any of these permissions required to use your device's features are disenabled, Math might not work.
  5. Uninstall and reinstall Math. If nothing else has worked, completely uninstall Math then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing Math not working


2. Fix Math Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make Math be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to Math not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, Math may not be able to connect to the Internet when running in the background.

Reported Issues

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