全把它化成分数或小数来计算.0.125×2.75+0.125×6.25-0.125＝0.125×（2.75+6.25-1）＝0.125×8＝10等于1全把它化成分数或小数来计算。0.125×2.75+0.125×6.25-0.125＝0.125×（2.75+6.25-1）＝0.125×8＝1