小明有40本书,小刚有48本书,小丽的书比小明和小刚的总数多12本,小丽有多少本书?2U.B3|;f:H:m:^-h'D
算式:提示6}0d,U'_2[5A(X9_,]0}/['[2S(K2U.B3|;f:H:m:^-h'D
答:小丽有8E6H-s,H,V*u3|)T7R本书。2U.B3|;f:H:m:^-h'D