Узнайте Abacus: все в одном

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🏅Challenge Mode Updated🏅

➕ Match random number or equation
➕ Select your desired difficulty
➕ Pick math operations that you want

Thank you all for the support 💖. You are always welcome to send us your suggestions or requests. ✉️
We are trying our best to make universal Abacus app for all ages so everyone can learn and improve their skills. 🧮