Only the current version so far — new entries appear as the app ships updates.
10を作れ！【計算パズル】 is an education app by 世代交TAI with 500+ downloads (about 929 estimated). Released Nov 1, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “Simple rules to make 10 from four numbers, you get stuck. By level up the more correct answer, fun to continue!”
