How to master Classification of Money？

As an AI language model, I don't have personal experiences, but I can provide you with some tips on how to master the classification of money:

1. Learn the different types of currency: Familiarize yourself with the different types of currency, such as coins and banknotes. Learn the denominations and their values.

2. Study the security features: Study the security features of banknotes and coins to help you identify counterfeit money.

3. Practice counting money: Practice counting money until you can do it quickly and accurately.

4. Understand the different payment methods: Learn about the different payment methods, such as cash, credit cards, and online payments.

5. Keep up-to-date with changes in currency: Keep up-to-date with any changes in currency, such as new designs or denominations.

6. Use resources: Use resources such as books, online tutorials, and training courses to help you improve your classification skills.

7. Practice, practice, practice: The more you practice, the more confident you will become in classifying money.