作业帮5/8*33+66*62.5%+0.652怎么简便计算
来源：学生作业帮 编辑：作业帮 分类：数学作业 时间：2024/05/06 01:16:53
5/8*33+66*62.5%+0.652怎么简便计算
5/8*33+66*62.5%+0.652
=0.625×33+66×0.625+0.652
=0.625×33(1+2)+0.652
=0.625×99+0.652
=0.625(100-1)+0.652
=62.5-0.625+0.652
=62.527
你的题目里的0.652应该是0.625吧?
再问： 是
再答： 5/8*33+66*62.5%+0.625 =0.625×33+66×0.625+0.625 =0.625×(33+66+1) =0.625×100 =62.5
=0.625×33+66×0.625+0.652
=0.625×33(1+2)+0.652
=0.625×99+0.652
=0.625(100-1)+0.652
=62.5-0.625+0.652
=62.527
你的题目里的0.652应该是0.625吧?
再问： 是
再答： 5/8*33+66*62.5%+0.625 =0.625×33+66×0.625+0.625 =0.625×(33+66+1) =0.625×100 =62.5