Question and Answer board - give students the answer and they have to write a word problem that matches the answer. You can have students do any operation or even 2 step problems. I have my students check each other's questions the next day.
Easily adaptable for 2nd-4th grades! Using cupcake liners for math is an easy way to prepare a new activity, especially centers! This counting money game is tons of fun, plus there are other suggestions for using the same format! Love this!
Super easy math warm-up (would need to be modified for Kinder). You could also differentiate this by including harder questions at the end for students who can quickly complete the first few questions.