Math Educational Keyboard - Addition/Subtraction

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, just press it down to reveal the answers! Practice addition and subtraction with this portable keyboard.

Key Features :

i : Each of the 81 keys has a math equation on it press down to reveal the answers
ii : Practice addition and subtraction with this portable keyboard
iii : Help kids develop basic math skills with these handy, portable, plastic boards