Here is a resource I created for remote teaching that could also be used as a digital tool in the classroom. It has a few problems from each fluency activity in Eureka Lesson 9 (rounding and decomposing units). It also includes the application problem (rounding). This is a google slides presentation with built in Peardeck activities to increase student engagement.

If you do not teach Eureka, this could still be used to help teach/ practice rounding and how to decompose unit numbers.

Please feel free to leave any feedback if you find any errors or have any questions about the product! :)