8 + 7 = - 15, 12 - 5 = - 7, 9 + 5 = - 14, 15 - 6 = - 9, 6 + 5 = - 11, 12 - 4 = - 8, 6 + 6 = - 12, 11 - 9 = - 2, 4 + 9 = - 13, 14 - 8 = - 6,

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?