12.5×0.7×0.32×25 =12.5×0.7×0.4×0.8×25 =(12.5×0.8)×0.7×(0.4×25) =10×0.7×10 =70 同学,提醒一下,在获得答案后,别忘了及时采纳哦,采纳可获得2经验值奖励!请抽空采纳,谢谢!顺祝春节快乐,学习进步,万事顺利!提前祝元宵节快乐!