I love dice games! Games can be as simple as rolling one or more die to get a sum or more roll and record type games where students roll a die and then record something that correlates to the number rolled (example: if a student rolled a 3, they might need to color in the answer to a math problem that was 18). I create these with blank black and white images and place math problems, minus the answers, in each space needing to be colored. A student would solve the problem and then roll the die to find out what color is needed to color it in.
This can work for all subject areas, but always makes it feel less like work and more like fun, and is engaging!

Playing cards! These are incredibly affordable, low prep, and versatile.
You can turn over 1-4 cards at a time to practice identifying numbers. Use the cards to build the highest number possible/ lowest number possible. Play with a partner and compare numbers. Identify number of ones, tens, hundreds, thousands based on the number turned over. Build a two digit number and practice changing the number in the ones, tens, hundreds place by turning over and covering with a new card.
You can turn over cards to add, subtract, or multiply. Turn over just one card and add or multiply that number to every new card turned over.
I love playing cards!

My first graders LOVE cards to practice math skills. Here is a great article with lots of choices.

https://www.weareteachers.com/math-card-games/

Also love playing War and Place Value War. You can find the template free at https://www.teacherspayteachers.com/Product/FREE-Place-Value-WAR-Game-4811802
I laminated it a couple years ago and still use it as a center! I found uno cards at Dollar Tree and they are in our Math Tool Boxes! #sofunandlearning

My class is 1 to 1. We use Blooket and Kahoot for the students. The students get excited when playing.