50-40 - 10, 64-21 - 43, 54-27 - 27, 37-18 - 19, 56-26 - 30, 84-53 - 31, 66-24 - 42, 32-12 - 20, 81-36 - 45, 97-27 - 70, 33-15 - 18, 75-21 - 54, 67-26 - 41, 79-29 - 50, 47-19 - 28,

Subtraction with Regrouping

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?