Buy Artist Leopold Flashcards and give your child an advantage in the application of maths concepts. These game-based flashcards have encoded answers that can only be revealed by the Magic GlassTM (included). You have to see it to believe it! Artist Leopold Flashcards are aligned to the learning objectives of all educational boards and perfect for mastering concepts of 5th standard Numbers, Decimals, Integers, and Money. General Flashcards: 40; Application Flashcards: 10; Magic Glass: 1.