Looking for hands-on math center activities that target addition and subtraction through composing and decomposing numbers? These addition and subtraction task cards work with Unifix cubes, snap cubes, or linking cubes... whatever manipulatives you already have in your classroom. Perfect for math centers, independent work stations, and special education task boxes in K through 3rd grade. It's a lifesaver for teachers in need of concrete, engaging materials. Unifix Cubes Task Cards are awesome! D