Small World Toys Preschool - Pluses and the Minuses Math Keyboard

Amazon.com Here's a fun travel toy for your little mathematician in the making-it makes no noise, requires no batteries, has no loose parts, and keeps kids busy. The Addition/Subtraction Keyboard contains 81 buttons, each with a single-digit addition or subtraction problem printed on it. Push the button down and the correct answer magically appears through the tinted plastic. The addition problems are printed on white buttons and the subtraction problems on pink. The buttons are set in a blue plastic base measuring 9 inches tall, 8.5 inches wide, and 1.25 inches deep. --Elisabeth Fredrickson Product Description Make learning fun and easy! Develop math skills of addition and subtraction by looking to solve the equations imprinted on the keys. Press the key to reveal the answer. From the Manufacturer Math Keyboards: Help kids develop basic math skills with these handy, portable, plastic boards; each of the 81 keys has a math equation on it press it down to reveal the answers. Practice addition and subtraction with this portable keyboard.