Make learning math fun by using these 9 sets of fifty double-sided cards for use with the Hot Dots Power Pen?. Each card features an equation in a multiple-choice format. Children respond by pressing the Hot Dots Power Pen to a hot or cold dot. Correct answers (hot dots) are rewarded with lights and sounds and incorrect answers (cold dots) receive a "Boing".

Each set of 3" x 5-1/2" cards is packaged in a sturdy, plastic box for easy storage.

Requires a Hot Dots Power Pen.

For ages 4 and Up.