Teachers, save “Here is the answer. What is the question?” to assign it to your class.

For this task, you will need to put on your thinking caps! We want you to pick a number between 10 and 30. Got it? Now, that's the answer! But.... hang on, what was the question? Can you come up with some number sentences that have your number as the answer? I've done an example for you where the answer is 6.