Age: 9+ Years | Duration: 15 to 45 minutes | No. of Players: 1 to many Buy the Grade 4 Math Flashcards Bundle and build your child’s overall mental math and application ability. These game-based flashcards have encoded answers that can only be revealed by the Magic Glass™ (included). You have to see it to believe it! The Flashcards Bundle are aligned to the learning objectives of all educational boards and perfect for mastering all Grade 4 Concepts. VALUE BUNDLE - Learn and practice Grade 4 Math in a single, affordable bundle box! MATH IS NOW FUN - Enjoy learning and improve mathematical ability with innovative, effective and fun flashcards! DESIGNED FOR ENGAGEMENT - The Magic Glass simulates a treasure hunt for kids while the multi-format cards and colorful illustrations amplify learning! MASTER MIND - Easy for parents and educators to assign questions, to learn new concepts or revise for exams! ANYWHERE, ANYTIME - Use at home, while traveling or in class to develop math skills. Reduce screen time and improve social interactions! Package Contents: 2 PacksEach Pack Contains:General Flashcards: 40 (Total: 80 cards)Application Flashcards: 10 (Total: 20 cards)Magic Glass: 1 (Total: 2)