脱式计算能简算就简算4.9*2.5+7.83,37.8-15.74-4.26,3.27*4.9+3.27*5.1,7.2*1.25*1.4,81*4.5+190*0.45、13.87*9.9+1.387

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/29 08:47:37

脱式计算能简算就简算4.9*2.5+7.83,37.8-15.74-4.26,3.27*4.9+3.27*5.1,7.2*1.25*1.4,81*4.5+190*0.45、13.87*9.9+1.387