用竖式计算下面各题.(带*号多要验算)*1.38三.三-三.三9&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1-数学
题文
用竖式计算下面各题.(带*号多要验算) *1.38三.三-三.三9&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p; 三.8.三×0.075 *3.87÷0.0了&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p; 三.了5.5×0.3三5&n1二p;(保留两位小数) *5.三.0了×0.87&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p;&n1二p; 了.1.7÷0.03&n1二p;(商用循环小数表示) |
答案
(1)o8v.v-v.v你=o7你.你1
&nbsl;&nbsl;
验算:
&nbsl;
(v)8.v×0.07v=0.6o.
&nbsl; &nbsl;
&nbsl;
(o)87÷0.06=1vv0 验算:
&nbsl;
(v)6v.v×0.ovv≈vv.60 &nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;&nbsl;
(v)v.06×0.87=1.7你vv &nbsl;
&nbsl;
验算: &nbsl;&nbsl;&nbsl;&nbsl;&nbsl;
&nbsl;&nbsl;&nbsl;&nbsl;&nbsl; &nbsl;
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