Product Description
Use as basic flash cards or add the Hot Dots pen (sold separately) for instant reinforcement - just touch the pen to the correct answer to get a positive response. Set includes 50 double-sided cards for 100 interactive math problems.

The Educational Insights Hot Dots Math Flash Cards - Subtraction Features:
Use like regular flash cards in small groups, or with the talking pen for independent study
Works with the talking hot dots pen (sold separately) that responds instantly with glowing lights and speech, or one of the many positive reward sounds
Great for students needing extra reinforcement