In Anki, this is usually achieved by selecting also 'Reverse' when creating a new card. In the top right corner on the Add Items view, you can select 'Forward' (it will shown the question and let you guess the answer, Question -> Answer), 'Reverse' (Answer -> Question) or both (it will create two cards, Question -> Answer and Answer -> Question).
You can also change your current cards to show first the answer and then the question how it is explained here:
http://ichi2.net/anki/wiki/FrequentlyAskedQuestions#How_can_I_reverse_the_order_of_the_question_and_answer.3F
Take into account, that in order to do any of these options you need Anki Desktop (copy your deck to the desktop and open it with it). There is no way to do that with AnkiDroid yet.
If you have any more doubt, don't hesitate to ask CC!
Cheers!