1) Does 45 - 27 need regrouping? a) Yes b) No c) Maybe d) Not sure 2) Does 63 + 29 need regrouping? a) Yes b) No c) Maybe d) Not sure 3) Does 82 - 19 need regrouping? a) Yes b) No c) Maybe d) Not sure 4) Does 54 + 18 need regrouping? a) Yes b) No c) Maybe d) Not sure 5) Does 76 - 38 need regrouping? a) Yes b) No c) Maybe d) Not sure 6) Does 47 + 56 need regrouping? a) Yes b) No c) Maybe d) Not sure 7) Does 91 - 45 need regrouping? a) Yes b) No c) Maybe d) Not sure 8) Does 33 + 67 need regrouping? a) Yes b) No c) Maybe d) Not sure 9) Does 58 - 29 need regrouping? a) Yes b) No c) Maybe d) Not sure 10) Does 72 + 18 need regrouping? a) Yes b) No c) Maybe d) Not sure

Regrouping in Addition and Subtraction

列印
嵌入

排行榜

視覺風格

選項

AI 強化版：此活動包含 AI 生成的內容。了解更多。

切換範本

恢復自動保存: ?