Download and install LDPlayer on your computer

Locate the Play Store in LDPlayer's system apps, launch it, and sign in to your Google account

Enter "シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学" into the search bar and search for it

Choose and install シマエナガと九九暗算!! 頭を使う脳トレ 計算 算数 数学 from the search results

Once the download and installation are complete, return to the LDPlayer home screen

Click on the game icon on the LDPlayer home screen to start enjoying the exciting game