Can I use "in dem täglichen Leben"? It was accepted
Would the preposition phrase "in alltaeglichem Leben" also be legal? Or would a german start chasing me shouting "grammar error!"
Not likely. But it is a grammar error.
I got this comment: Be careful not to confuse "Mathematik" and "Mathe"!
I never knew there was a difference. Can anyone explain to me what the difference is?
"Mathe" is the short form of "Mathematik", just like "math" is the short form of "mathematics".
Thanks, that's exactly what I thought. So it both answers should be correct here, right? I used Mathe and it was wrong...
Yes, they should both be correct.