问题 计算题 和我一起来巧算。(1)85+85+73+85+85 =□×□+□ =□(2)33.2-13.4-12.6 =33.2-(□○□) =□(3)38×12 =38×□+38×□ =□(4)56×39 =56×□-56×□ =□(5)346-100+99-98+97-96+95-94+…+5-4+3-2+1 =346-□×□ =346-□ =□ 答案 (1)85×4+73 = 413(2)33.2-(13.4+12.6) =7.2(3)38×10+38×2 = 456(4)56×40-56×1 =2184(5)346-1×50 =346-50 =296 问答题 简答题 清单屏蔽怎么收费? 查看答案 选择题 Something ____ gone wrong with my TV set. [ ]A. hasB. have C. is D. are 查看答案