用简便方法计算3.14×75%+0.786×7.5-3/4
来源:学生学帮网 编辑:学帮网 时间:2024/06/11 13:46:06
用简便方法计算3.14×75%+0.786×7.5-3/4
3.14×75%+0.786×7.5-3/4 =3.14×0.75+7.86×0.75-0.75 =(3.14+7.86-1)×75% =10×7.5 =75
用简便方法计算3.14×75%+0.786×7.5-3/4
3.14×75%+0.786×7.5-3/4 =3.14×0.75+7.86×0.75-0.75 =(3.14+7.86-1)×75% =10×7.5 =75