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【321343】六年级数学下册典型例题系列之第四单元:解比例方程专项练习(原卷版)人教版

时间:2025-01-08 19:48:01 作者: 字数:4761字
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 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 2021-2022学年六年级数学下册典型例题系列之

第四单元:解比例方程专项练习(原卷版)

1.解方程或比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>          75∶0.4x∶ <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>




2.解比例和方程。

1 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x25             2 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                   (3 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>




3.解方程或比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





4.求未知数x的值。

x∶0.5 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 1.8               <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>               x25%1.5



5.求未知数x的值。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>               7.6x4.4x160




6.求未知数 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>               3x16×3102             <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





7.解方程或解比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>          4∶336∶ <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





8.解比例。

45∶1236∶ <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                     <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ∶(20.4)=15∶20





9.解方程或比例。

8x1.5×316.5          <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ∶x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>        <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 30%




10.解比例。

3.75∶x5∶12                                    <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 0.25∶0.6





11.解比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                      4∶1 x∶ <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                   5∶8 20∶x





 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x∶ <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ∶x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 2





12.解方程。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                                                 ② <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                                                      ④ <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





13.解方程或解比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                               ② <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x∶0.125 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> 3.5





14.解比例。

0.4∶x1.2∶2          <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> ∶x3∶12     





15.求下列未知数。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>  <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x∶6              x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a> x <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





16.解方程或比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>             <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>             <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>





17.求未知数 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>                <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>



18.解方程或解比例。

 <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>              x85%x750              <a href="/tags/1/" title="单元" class="c1" target="_blank">单元</a> <a href="/tags/48/" title="练习" class="c1" target="_blank">练习</a> <a href="/tags/55/" title="数学" class="c1" target="_blank">数学</a> <a href="/tags/96/" title="典型" class="c1" target="_blank">典型</a> <a href="/tags/97/" title="系列" class="c1" target="_blank">系列</a> <a href="/tags/98/" title="例题" class="c1" target="_blank">例题</a>


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