방법1:2896=2900-4,3689=3700-11,2900-4+3700-11=6600-15=6586방법2:2896=2800+96,3689=3600+89,2800+96+3600+89=6400+185=6586방법3:2896=2000+800+90+6,3689=3
[무물보AI] 답변 로딩중...