After completing a topic you'll be able to see your results straight away by clicking the "View results" button:
Viewing results for a past topic
You can also find results to your past topics by going to your Activity page and clicking Check results:
You can also start a lesson here on any of the topic questions by clicking the "Take Lesson" button:
Don't forget you can complete Stretch & Challenge activities on topics you want to push yourself further on 🚀