Well of course you could use it as a brain training app for adults.

But it's main purpose is to let children who need to learn the multiplication tables/times tables practise with them!

So if you have kids and won't be afraid lend them your Jolla let them practise with the multiplication tables using this app

If your kids really want to practise the multiplication tables now and don't want to wait until you receive your Jolla or you'd rather not lend them your Jolla then you can always let them practise with Qt Clamshell, the desktop version (which has a nice beach themed QtQuick Controls based UI instead of the Silica UI).

Note that Qt Clamshell is still under development, so it's not completely finished yet (for example the user isn't explicitly notified if his/her answer is correct/wrong. If you enter the answer and hit "Submit answer" and no question appears, the answer the user gave is incorrect)

Qt Clamshell on Bitbucket

Hope you like it and both apps could use some testing (the practise all multiplications tables mode hasn't been tested completely due to lack of time, 100 questions to answer you know . They both use the same logic, just a different UI, so if you find a bug it's probably in both apps)

Superpelican