MASTER MATH: Become a self-teaching math whiz with this skill-boosting device! With handheld games like Math Slam, you can enjoy learning as much as your brain does 5 SLAMMING GAMES: With 5 fun games—Slam it Up, Sum Slam, Subtraction Slam, Triple Slam, and Mystery Number—you can level up your basic algebra skills and try to beat your own times ENGAGING GAMEPLAY: Lights, sounds, and a built-in timer keep kids engaged as they play over and over again to set new records or challenge a friend; the mute option allows for quiet classroom play INCLUDES: Math Slam math game with easy-to-read LCD window and LED number displays, and gameplay guide. Perfect for on the go practice! Requires 3 AA batteries (not included) THE PERFECT GIFT: Have an upcoming birthday or holiday? Our toys & games make the perfect activity for the home or classroom, no matter the occasion