早教吧 育儿知识 作业答案 考试题库 百科 知识分享

(1)(30-19.8)×0.6+31.2(2)[10-(6+3.03)]×1.01(3)73.6×27+73.6×73(4)49.2-0.5×0.5-8.75(5)(291-38×3.5-35.5)÷3.5(6)12.5×0.56×0.4×0.8×250

题目详情
(1)(30-19.8) ×0.6+31.2 (2)[10-(6+3.03)] ×1.01
(3)73.6 ×27+73.6 ×73 (4)49.2-0.5 ×0.5-8.75
(5)(291-38 ×3.5-35.5) ÷3.5 (6)12.5 ×0.56 ×0.4 ×0.8 ×250
▼优质解答
答案和解析
(1)(30-19.8) ×0.6+31.2
  =10.2×0.6+31.2
  =6.12+31.2
  =37.32 
(2)[10-(6+3.03)] ×1.01
  =[10-9.03]×1.01
  =0.97×1.01
  =0.9797
(3)73.6 ×27+73.6 ×73
  =73.6×(27+73)
  =73.6×100
  =7360 
(4)49.2-0.5 ×0.5-8.75
  =49.2-0.25-8.75
  =49.2-(0.25+8.75)
  =49.2-9
  =40.2
(5)(291-38 ×3.5-35.5) ÷3.5
  =(291-133-35.5)÷3.5
  =122.5÷3.5
  =35 
(6)12.5 ×0.56 ×0.4 ×0.8 ×250
  =(12.5×0.8)×(0.4×250)×0.56
  =10×100×0.56
  =560