What should I do to make good progress in sololearn challenge?

Question

In challenge Sololearn gives many questions where we need to calculate some number which are too big. Such as adding a *= (a+47) for 8 times. But we don't have enough time to calculate them properly. What should I do to be good at these challenges.

Answer 1

Learn the syntax and practise.

Answer 2

There are few questions which require tons of calculation in little time. If you meet a question like that, I would suggest you just memorize it after challenge ends honestly.

But the amount of this kind of question is few. Probably 1 / 9.