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Get 암산 연습 old version APK for Android
You can practice four arithmetic operations and play games.
Anyone can practice addition, subtraction, multiplication, and division according to their own level through step setting.
You can change the theme color to your liking.
1. Coin consumption
1-1. Change theme color
1-2. Four arithmetic games
1-3. Four rule arithmetic practice
2. Coin increase
2-1. New record breaking
2-2. Advertising