2016年苏教版小学五年级数学上册《第三单元》测试试卷及答案

<div style="text-align: center;"><strong><font color="#ff0000">2016年苏教版小学五年级数学上册第三单元测试卷</font></strong></div><br><span><strong>一、填空题。</strong></span><br><br><span>1.</span><span>一个小数的整数部分的最低位是</span><span>(</span><span>  </span><span>)</span><span>位</span><span>,</span><span>它的计数单位是</span><span>(</span><span>  </span><span>);</span><span>小数部分的最高位是</span><span>(</span><span>  </span><span>)</span><span>位</span><span>,</span><span>它的计数单位是</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>2.</span><span>把整数“</span><span>1</span><span>”平均分成</span><span>10</span><span>份</span><span>,</span><span>这样的</span><span>7</span><span>份用分数表示为</span><span>(</span><span>  </span><span>),</span><span>用小数表示为</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>3.7.8</span><span>里有</span><span>(</span><span>  </span><span>)</span><span>个</span><span>0.1</span><span>;</span><span>0.4</span><span>里有</span><span>(</span><span>  </span><span>)</span><span>个</span><span>0.01</span><span>;</span><span>把</span><span>3</span><span>改写成计数单位是</span><span>0.01</span><span>的数是</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>4.</span><span>&nbsp;</span><span>20.202</span><span>这个数中</span><span>,</span><span>最左边的“</span><span>2</span><span>”在</span><span>(</span><span>  </span><span>)</span><span>位上</span><span>,</span><span>表示</span><span>2</span><span>个</span><span>(</span><span>  </span><span>);</span><span>中间的“</span><span>2</span><span>”在</span><span>(</span><span>  </span><span>)</span><span>位上</span><span>,</span><span>表示</span><span>2</span><span>个</span><span>(</span><span>  </span><span>);</span><span>最右边的“</span><span>2</span><span>”在</span><span>(</span><span>  </span><span>)</span><span>位上</span><span>,</span><span>表示</span><span>2</span><span>个</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>5.</span><span>&nbsp;</span><span>0.62</span><span>、</span><span>6.20</span><span>、</span><span>6.02</span><span>和</span><span>0.620</span><span>中</span><span>,</span><span>相等的数是</span><span>(</span><span>  </span><span>)</span><span>和</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>6.</span><span>一个数由</span><span>6</span><span>个十、</span><span>3</span><span>个</span><span>0.1</span><span>和</span><span>9</span><span>个</span><span>0.001</span><span>组成</span><span>,</span><span>这个数是</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>7.</span><span>&nbsp;小东参加体检时</span><span>,</span><span>量得身高是</span><span>1.736</span><span>米</span><span>,</span><span>体重是</span><span>61.75</span><span>千克。他的身高精确到百分位是</span><span>(</span><span>  </span><span>)</span><span>米</span><span>,</span><span>体重精确到个位是</span><span>(</span><span>  </span><span>)</span><span>千克。</span><br><br><strong><span>二、判断题。</span><span>(</span><span>正确的画“√</span><span>”</span><span>,</span><span>错误的画“</span><span>&#10005;</span><span>”</span><span>)</span></strong><br><br><span>1.</span><span>2.40</span><span>和</span><span>2.4</span><span>意义相同</span><span>,</span><span>大小相等。</span><span>(</span><span>  </span><span>)</span><br><br><span>2.</span><span>把</span><span>0.95</span><span>改写成三位小数是</span><span>0.950</span><span>,</span><span>精确到十分位是</span><span>1.0</span><span>。</span><span></span><span>(</span><span>  </span><span>)</span><br><br><span>3.</span><span>因为</span><span>1</span><span>里有</span><span>100</span><span>个</span><span>0.01</span><span>,</span><span>所以</span><span>9</span><span>里就有</span><span>900</span><span>个</span><span>0.01</span><span>。</span><span></span><span>(</span><span>  </span><span>)</span><br><br><span>4.</span><span>把一个小数精确到十分位就是把这个数保留一位小数。</span><span></span><span>(</span><span>  </span><span>)</span><br><br><span>5.</span><span>在小数点后面去掉“</span><span>0</span><span>”或添上“</span><span>0</span><span>”</span><span>,</span><span>小数的大小不变。</span><span></span><span>(</span><span>  </span><span>)</span><br><br><strong><span>三、选择题。</span><span>(</span><span>把正确答案的序号填在括号里</span><span>)</span></strong><br><br><span>1.</span><span>20.30</span><span>读作</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>A.</span><span>二十点三十</span><span>  B.</span><span>二十点三零</span><span> </span><br><br><span>C.</span><span>二零点三零</span><span>  D.</span><span>二点三零</span><br><br><span>2.</span><span>40.070</span><span>化简后是</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>A.4.7 B.40.7 C.40.07 D.4.07</span><br><br><span>3.90.996</span><span>保留两位小数是</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>A.90.99</span><span></span><span>B.91.00</span><span></span><span>C.90.90</span><span></span><span>D.91</span><br><br><span>4.</span><span>一个两位小数精确到十分位是</span><span>6.9</span><span>,</span><span>这个数最大是</span><span>(</span><span>  </span><span>)</span><span>。</span><br><br><span>A.6.99</span><span></span><span>B.6.89</span><span></span><span>C.6.94</span><span></span><span>D.6.85</span><br><br><span>5.</span><span>大于</span><span>3.2</span><span>小于</span><span>3.3</span><span>的小数有</span><span>(</span><span>  </span><span>)</span><span>个。</span><br><br><span>A.</span><span>&nbsp;</span><span>0</span><span></span><span>B.</span><span>&nbsp;</span><span>1</span><span></span><span>C.2</span><span></span><span>D.</span><span>无数</span><br><br><strong><span>四、在○</span><span>里填上“</span><span>&gt;</span><span>”“</span><span>&lt;</span><span>”或“</span><span>=</span><span>”。</span></strong><br><br><span>0.54</span><strong>○</strong><span>0.45   4.070</span><strong>○</strong><span>4.07</span><br><br><span>0.65</span><span>万</span><strong>○</strong><span>6500</span><span>&nbsp;</span><span>&nbsp;&nbsp;</span><span>6.89</span><strong>○</strong><span>7.2</span><br><br><span>9.02</span><span>9.01</span><span>&nbsp;</span><span></span><span>4.14</span><span>万</span><span>5100</span><br><br><span><strong>五、求下列小数的近似数。</strong></span><br><br> <table width="100%" border="1"><tbody><tr><td><br>&nbsp;<br></td><td><br>保留整数<br></td><td><br>保留一位小数<br></td><td><br>保留两位小数<br></td></tr><tr><td><br>2.9136<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>9.9584<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>6.0279<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span><strong>六、将下面的小数按从小到大的顺序排列。</strong></span><br><br><span>6.03  3.06  3.6  6.3  3.63</span><br><br><span><strong>七、把下面各数改写成用“万”或“亿”作单位的数。</strong></span><br><br><span>500=</span><span>(</span><span>   </span><span>&nbsp;</span><span>)</span><span>万</span><br><br><span>760000000=</span><span>(</span><span>   </span><span>&nbsp;</span><span>)</span><span>亿</span><br><br><span>61700=</span><span>(</span><span>   </span><span>&nbsp;</span><span>)</span><span>万</span><br><br><span>4108000000=</span><span>(</span><span>   </span><span>&nbsp;</span><span>)</span><span>亿</span><br><br><span>468320=</span><span>(</span><span>   </span><span>&nbsp;</span><span>)</span><span>万</span><br><br><span>66309000000=</span><span>(</span><span>   </span><span>&nbsp;</span><span>)</span><span>亿</span><br><br><span><strong>八、操作题。</strong></span><br><br><span>1.</span><span>看数涂色。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0930/2016930154043.png?m=0.9687463188033305"><br><br><span>2.</span><span>在下面的数线上</span><span>,</span><span>标出</span><span>0.26</span><span>、</span><span>0.09</span><span>、</span><span>0.37</span><span>、</span><span>0.44</span><span>所在的位置。</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/0930/2016930154115.png?m=0.44690701420824586"><br><br><span><strong>九、解决问题。</strong></span><br><br><span>1.</span><span>下面是五</span><span>(</span><span>2</span><span>)</span><span>班四位女生的跳高成绩。</span><br><span>&nbsp;</span><br> <table width="100%" border="1"><tbody><tr><td><br>姓 名<br></td><td><br>小丽<br></td><td><br>小芳<br></td><td><br>小芹<br></td><td><br>小玲<br></td></tr><tr><td><br>成绩/米<br></td><td><br>0.92<br></td><td><br>1.11<br></td><td><br>1.2<br></td><td><br>0.96<br></td></tr></tbody></table> <br><span>排一下她们的名次。</span><br><br><span>2.</span><span>2004</span><span>年</span><span>,</span><span>我国在校的小学生一共有</span><span style="text-decoration:underline"><span>112462000</span></span><span>人</span><span>,</span><span>初中生一共有</span><span style="text-decoration:underline"><span>64750000</span></span><span>人。先把它们改写成用“亿”作单位的数</span><span>,</span><span>再精确到十分位写出它们的近似数。</span><br><br><span>3.2003</span><span>年</span><span>,</span><span>我国粮食总产量达到了</span><span style="text-decoration:underline"><span>4.3</span></span><span style="text-decoration:underline"><span>亿吨</span></span><span>,</span><span>其中稻谷产量</span><span style="text-decoration:underline"><span>1.656</span></span><span style="text-decoration:underline"><span>亿吨</span></span><span>,</span><span>小麦产量</span><span style="text-decoration:underline"><span>8648.8</span></span><span style="text-decoration:underline"><span>万吨</span></span><span>。把这些产量改写成用“吨”作单位的数。</span><br><br><strong><span>十、动脑筋</span><span>,</span><span>做一做。</span></strong><br><br><span>一个三位小数</span><span>,</span><span>四舍五入到十分位是</span><span>5.0</span><span>,</span><span>这个三位小数最大是多少</span><span>?</span><span>最小是多少</span><span>?</span><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2016年苏教版小学五年级数学上册第三单元测试卷答案</font></strong></div><br><span>一、</span><span>1</span><span>.</span><span>个</span><span> </span><span>一</span><span> </span><span>十分</span><span> 0.1 </span><span>2</span><span>.</span><span>&nbsp;</span><span> 0.7 </span><span>3</span><span>.</span><span>&nbsp;</span><span>78 40 3.00 </span><span>4</span><span>.</span><span>十</span><span> </span><span>十</span><span> </span><span>十分</span><span> 0.1 </span><span>千分</span><span> 0.001</span><br><br><span>5</span><span>.</span><span>&nbsp;</span><span>0.62 0.620 </span><span>6</span><span>.</span><span>&nbsp;</span><span>60.309 </span><span>7</span><span>.</span><span>&nbsp;</span><span>1.74 62</span><br><br><span>二、</span><span>1</span><span>.</span><span>&#10005;</span><span> </span><span>2</span><span>.√</span><span> </span><span>3</span><span>.</span>√<span> </span><span>4</span><span>.</span>√<span> </span><span>5</span><span>.</span><span>&#10005;</span><br><br><span>三、</span><span>1</span><span>.B </span><span>2</span><span>.C </span><span>3</span><span>.B </span><span>4</span><span>.C </span><span>5</span><span>.D</span><br><br><span>四、</span><span>&gt; = = &lt; &gt; &gt;</span><br><br><span>五、</span><span>3 2.9 2.91 10 10.0 9.96 6 6.0 6.03</span><br><br><span>六、</span><span>3.06&lt;3.6&lt;3.63&lt;6.03&lt;6.3</span><br><br><span>七、</span><span>0.05 7.6 6.17 41.08 46.832 663.09</span><br><br><span>八、</span><span>略</span><br><br><span>九、</span><span>1</span><span>.</span><span>第一名</span><span>:</span><span>小芹</span><span> </span><span>第二名</span><span>:</span><span>小芳</span><span> </span><span>第三名</span><span>:</span><span>小玲</span><br><br><span>第四名</span><span>:</span><span>小丽</span><br><br><span>2</span><span>.</span><span>112462000=1.12462</span><span>亿</span><span>≈</span><span>1.1</span><span>亿</span><br><br><span>64750000=0.6475</span><span>亿</span><span>≈</span><span>0.6</span><span>亿</span><br><br><span>3</span><span>.</span><span>430000000</span><span>吨</span><span> 165600000</span><span>吨</span><span> 86488000</span><span>吨</span><br><br><span>十、</span><span>5.049 4.950</span><br><div><span><br></span></div>