21 Not Blackjack - Math Puzzle

In this game, you need to use number cards along with addition, subtraction, multiplication, and division to make 21. It's a game with a simple set of rules based on commonly known arithmetic operations, allowing players to sharpen their numerical skills.

* Gameplay:
- Start with 3 to 5 number cards and use them to make 21 by utilizing all the given cards.
- Play number cards and use the addition, subtraction, multiplication, and division buttons to obtain operator cards. If the result of the equation is 21, you'll clear the level.
- Anyone who can perform basic arithmetic can enjoy this game.
- It's user-friendly with simple touch controls, making it accessible to everyone.
- Enhance your math skills and logical thinking through gameplay.
- Keep breaking through increasingly challenging levels to become a numbers master.

* Features:
- A very simple rule based on the universally known arithmetic operations.
- User-friendly and straightforward touch controls.
- Clean and flat design.
- Enjoyable gameplay with beautiful music.
- Dark mode support.
- Over 220 levels to conquer.