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

순위표

비주얼 스타일

옵션

AI 강화: 이 활동에는 AI가 생성한 콘텐츠가 포함되어 있습니다. 더 알아보세요.

템플릿 전환하기

자동 저장된 게임을 복구할까요?