问题描述:计算:28.67x67+3.2x286.7+573.4x0.05=?这是育苗杯的试题~~~急最佳答案: 28.67x67+3.2x286.7+573.4x0.05=28.67x67+32x28.67+28.67x0.05*20=28.67x(67+32+1)=2867 点击显示答案