Ten Flashing Fireflies by Philemon Sturges is a great resource for math activities! I snagged an empty pickle jar (plastic of course) from the band's concession stand before they threw it away. I'm adding fireflies with number problems inside.
Students will pull out the firefly cards and solve the problem.
I haven't created a worksheet to go with it as my kiddos like using the whiteboards too much right now. They record the number sentences on their boards and when station time is over, they earn point for their class team for the problems they solve.
You could also add fireflies and have kids pull two numbers out to add or subtract...create task cards and have kids pull out fireflies to put into categories...flies that equal 9, 8, etc...
You could even put literacy skills on the firefly cards and have them sort words.