Found a small bug in problem builder: if you type something but did not have the time to press the submit button, when you play the next problem as soon as you type new input, the old input that you didn't submit appears in the text box.
Also I noticed if you type for example 100 + 9 x 2 it does not interpret it as 118. Shouldn't it be so? Maybe you can add keys for parentheses ( ) also.
Also I noticed if you type for example 100 + 9 x 2 it does not interpret it as 118. Shouldn't it be so? Maybe you can add keys for parentheses ( ) also.