Critter cards with 3 addends to be placed in jars with the answers. Goes with standard: 1.OA.2 I can solve problems that call for addition of three whole numbers whose sum is less than or equal to 20.
A little added incentive could be using real mason jars labeled with the numbers. I tried it with the small jars and it worked great, just needed to trim the cards a little closer than just on the lines. You know how using props seems to make them excited! (There are pictures of it both ways in the preview!!)
I also included all pages in both color and black and white so you have a choice of how to use them. Hope this helps!!