New in sealed box Improve your child's addition and subtraction skills with these flash cards from Learning Advantage. The set includes equations in a fact family format, suitable for children of ages 1-2 to 17 years and up. The cards are brand new and sealed in their original packaging, ready to provide hours of educational fun. Made in China, these flash cards are an excellent tool for teaching mathematics to kids. The brand, Learning Advantage, is known for its high-quality educational products. Whether your child is just starting to learn addition and subtraction or looking to improve their skills, these flash cards are a great choice.