positive: 解:637÷4=159.25验算如下:<br>159.25x4=637<br>(或:637÷159.25=4)<br>验算完毕。
negative: "62÷3=20......2 竖式如下<br><img src=""https://iknow-pic.cdn.bcebos.com/0eb30f2442a7d933c3150624aa4bd11373f00123?x-bce-process=image/resize,m_lfit,w_600,h_800,limit_1"" max-height=""200"">"