In this packet there are 3 levels of subtracting games for the Common Core State Standard M.A. 1.0A.1-2 and 5-6. There is a learning goal and scale that aligns with the CCSS. There is one on level game, one enrichment (advanced) game, and one intervention game ( for struggling students). I teach my students about subtracting multiples of ten from two-digit numbers using ten frames cubes, a hundreds chart, and a number model. Then I play the games with them in small group. After they understand the games I have them play them during math centers with a group of individually. Although this is geared towards first grade you could use this in 2nd or 3rd grade as well.