36 + 96 =, 45 + 85 =, 85 + 47 =, 63 + 48 =, 88 + 12 =, 58 + 17 =, 23 + 46 =, 76 + 37 =.

Adding with Regrouping

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?