About this item:
Develops skills in addition, subtraction, multiplication, division, fractions, place value, telling time and money.
 
Here’s a super-fun way to build math skills—with instant reinforcement! Kids just touch an answer with the special Power Pen …and the pen tells them if they’re right or wrong. Each pack comes with 53 double-sided cards and an answer key. The complete set includes all 8 packs shown (Power Pen not included), for a total of 424 cards. Each box measures 3 3/4" x 6 1/2". Each pack is also available separately.