This product includes two cover sheets in case you would like to differentiate centers by separating "Addition/Subtraction up to 10" and "Addition/Subtraction up to 20." There are cookie jars in color and black and white for numbers 1-20. Each "Cookie Jar Number" has four matching number problems (two addition problems and two subtraction problems.) This center can be easily differentiated by levels and by splitting up the game into colors of cookies. You can also turn this game into "War." Split up the cards between players and have them flip over the first card. Whoever has the highest sum/difference wins a point. To keep track of points, I use manipulatives. Every time a student gets a point, they get one manipulative in their pile. At the end, see who has the most "points."
Like this product? Check out my February Bundle which includes 7 phonics/math centers!
February Phonics/Math Bundle K-2