Numbers were invented 2,000 years ago when Jesus was born, everyone knows that. They didn't use numbers before then. Duh.
But seriously, you could just save at the end of each day and reload if you get it wrong. It's a bit time-consuming, but it works.
Another thing you could do is to leave it on the question, go to a PC (if you have one) and look it up online. I know not everyone has a PC, or the internet, or what-have-you, but it's another alternative. As far as I know, there's no timer on the question's answers (at least, there wasn't in the original P3).