Practice subtraction facts up to 17 – 9 with the self-checking Subtraction Practice Board! Children simply choose any equation, solve it, and spin the dial to reveal the correct answer. When they're done, they press the handles on either side to reset the board and begin again. This fun-to-use board is great for small group work, individual practice, and learning on the go. For over 50 years, hand2mind has encouraged hands-on learning and discovery, driving deeper understanding and helping children unlock their full potential. hand2mind specializes in math manipulatives designed to help students learn by doing. They supply math counters, rekenreks, abacus, counting cubes and more to help little ones go from counting to 10, 20 and beyond! From early math to middle school math, hand2mind has you covered with products designed to enhance learning in the classroom and the world around us. Through hands-on exploration and discovery, we strive to find new ways to encourage students in math practice, literacy activities, STEM education and more