2017年成都小升初名校数学真题每日一练（2.15）(2)
成都家长帮
2017-02-15 10:32:36
【答案详情】
【答案】38.65
【解析】原式=0.125×0.75+0.125×8.25+0.125+0.374×48+0.62×37.4-3.74
=0.125×（0.75+8.25+1）+37.4×(0.48+0.62-0.1)
=1.25+37.4
=38.65
