This is Lemo's arithmetics website.
Here you can improve your mental math skills.
Currently we have developed the following two games:
If you find a bug, or have any suggestions, feel free to e-mail us.
This is the arithmetic game. Here you have to perform a
variety of mental math problems. There are 3 different
difficulties, each one is significantly harder than the last one
This is the coin game. Here you have to sum the
values of a bunch of coins. Currently, only the
EUR currency is supported, more will be added in
the near future.