Playskool™ Addition Flash Cards. Ages 3+. Includes bonus reward stickers! Learn addition! Addition 36 flash cards. Addition flash cards are designed with easy learning in mind! To start, hold up each card to your child, read the problem out loud and solve the problem illustrated. Big, bold numbers make learning addition easy and fun! Visit us at: playskool.com. Leap year. Licensed by: Hasbro™. www.leapyearpublishing.com. Hasbro and its logo and Playskool are trademarks of Hasbro and are used with permission. ©2011 Hasbro. All rights reserved.