67*0.25+2.5*3.75-4.5*0.25简算如题_数学解答

67*0.25+2.5*3.75-4.5*0.25简算
如题

人气：305 ℃　时间：2020-03-17 12:51:36

解答

67*0.25+2.5*3.75-4.5*0.25
=67×0.25+0.25×37.5-4.5×0.25
＝（67+37.5-4.5）×0.25
＝100×0.25
＝25