Here are some sample tasks that are open ended enough to use for many levels! A variety of samples for K-8. You can use numbers appropriate to challenge each student or grade if you like. You can have learners create their own tasks after trying these as well. Includes: Which One Doesn't Belong samplePico Fermi Bagels game (whole class or small group - virtual or in class)Mystery Number Templates for many levels___ is the answer. What is the question?Place Value tasksHoliday task templates