2018年小学三年级数学上册《第三单元》测试题及答案

<strong><span>一、我会填</span><span>(</span><span>32</span><span>分</span><span>)</span></strong><span></span><br><br><span>1</span><span>.</span><span>我们学过的长度单位有</span><span>(</span><span>   </span><span>)</span><span>、</span><span>(</span><span>   </span><span>)</span><span>、</span><span>(</span><span>   </span><span>)</span><span>、</span><span>(</span><span>   </span><span>)</span><span>、</span><span>(</span><span>   </span><span>),</span><span>质量单位有</span><span>(</span><span>   </span><span>)</span><span>、</span><span>(</span><span>   </span><span>)</span><span>、</span><span>(</span><span>   </span><span>)</span><span>。</span><span></span><br><br><span>2</span><span>.</span><span>填上适当的数。</span><span></span><br><br><span>2000</span><span>米</span><span>=</span><span>(</span><span>   </span><span>)</span><span>千米</span><span></span><br><br><span>90</span><span>毫米</span><span>=</span><span>(</span><span>   </span><span>)</span><span>厘米</span><span></span><br><br><span>3</span><span>米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>分米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>厘米</span><span></span><br><br><span>7</span><span>分米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>厘米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>毫米</span><span></span><br><br><span>80</span><span>厘米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>毫米</span><span></span><br><br><span>4</span><span>米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>厘米</span><br><br><span>6</span><span>吨</span><span>=</span><span>(</span><span>  </span><span>)</span><span>千克</span><span></span><br><br><span>7000</span><span>克</span><span>=</span><span>(</span><span>  </span><span>)</span><span>千克</span><span></span><br><br><span>3</span><span>吨</span><span>4</span><span>千克</span><span>=</span><span>(</span><span>  </span><span>)</span><span>千克</span><span></span><br><br><span>9009</span><span>米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>千米</span><span>(</span><span>  </span><span>)</span><span>米</span><span></span><br><br><span>2</span><span>米</span><span>- 5</span><span>分米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>分米</span><span></span><br><br><span>1</span><span>吨</span><span>- 800</span><span>千克</span><span>=</span><span>(</span><span>  </span><span>)</span><span>千克</span><br><br><span>1</span><span>米</span><span>+52</span><span>厘米</span><span>=</span><span>(</span><span>  </span><span>)</span><span>厘米</span><span></span><br><br><span>3</span><span>.</span><span>在</span><span>○</span><span>里填上“</span><span>&gt;</span><span>”“</span><span>&lt;</span><span>”或“</span><span>=</span><span>”。</span><span></span><br><br><span>9</span><span>毫米</span><span>○</span><span>11</span><span>毫米</span><span> 30</span><span>分米</span><span>○</span><span>3</span><span>厘米</span><span></span><br><br><span>2</span><span>吨</span><span>○</span><span>30000</span><span>克</span><span></span><span>1009</span><span>米</span><span>○</span><span>1</span><span>千米</span><span>9</span><span>米</span><span></span><br><br><span>1</span><span>千米</span><span>○</span><span>999</span><span>米</span><span></span><span>35</span><span>毫米</span><span>○</span><span>4</span><span>厘米</span><span></span><br><br><span>6</span><span>千克</span><span>○</span><span>6006</span><span>克</span><span></span><span>40</span><span>分米</span><span>○</span><span>300</span><span>厘米</span><span></span><br><br><strong><span>二、我当小法官</span><span>(</span><span>对的打“</span><span>√</span><span>”</span><span>,</span><span>错的打“</span><span>&#10005;</span><span>”</span><span>)</span><span>(</span><span>5</span><span>分</span><span>)</span></strong><span></span><br><br><span>1</span><span>.1</span><span>吨棉花比</span><span>1</span><span>吨石头轻。</span><span></span><span>(</span><span>  </span><span>)</span><span></span><br><br><span>2</span><span>.10</span><span>分米比</span><span>1</span><span>米长。</span><span></span><span>(</span><span>  </span><span>)</span><span></span><br><br><span>3</span><span>.</span><span>教室黑板</span><span>长约</span><span>40</span><span>分米。</span><span></span><span>(</span><span>  </span><span>)</span><span></span><br><br><span>4</span><span>.</span><span>轮船的载质量用“吨”作单位。</span><span></span><span>(</span><span>  </span><span>)</span><span></span><br><br><span>5</span><span>.</span><span>在米、分米、厘米、千米中</span><span>,</span><span>每相邻两个单位之间的进率都是</span><span>10</span><span>。</span><span></span><span>(</span><span>  </span><span>)</span><span></span><br><br><strong><span>三、我是生活小能手</span><span>(</span><span>9</span><span>分</span><span>)</span></strong><span></span><br><br><span>1</span><span>.</span><span>在</span><span>(</span><span>  </span><span>)</span><span>里填上合适的单位。</span><span>(</span><span>5</span><span>分</span><span>)</span><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0815/2018815195125.png?m=0.17577424741012493"><br><br><span>2</span><span>.</span><span>连一连。</span><span>(</span><span>4</span><span>分</span><span>)</span><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0815/2018815195211.png?m=0.5880743703286653"><br><br><strong><span>四、操作题</span><span>(</span><span>14</span><span>分</span><span>)</span></strong><span></span><br><br><span>1</span><span>.</span><span>画一条比</span><span>2</span><span>厘米多</span><span>8</span><span>毫米的线段。</span><span>(</span><span>3</span><span>分</span><span>)</span><br><br><span>2</span><span>.</span><span>按要求排队。</span><span>(</span><span>从短到长排列</span><span>)</span><span>(</span><span>3</span><span>分</span><span>)</span><br><br><span>9</span><span>米</span><span>3</span><span>厘米</span><span> 93</span><span>分米</span><span> 9</span><span>米</span><span>3</span><span>毫米</span><span> 9</span><span>千米</span><span>3</span><span>米</span><span></span><br><br><br><span>3</span><span>.</span><span>量出下列图形各边的长</span><span>。</span><span>(</span><span>以毫米为单位</span><span>)</span><span>(</span><span>8</span><span>分</span><span>)</span><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0815/2018815195258.png?m=0.30060358178311186"><br><br><strong><span>五、解决问题</span><span>(</span><span>40</span><span>分</span><span>)</span></strong><span></span><br><br><span>1</span><span>.5</span><span>头大象重</span><span>20</span><span>吨</span><span>,</span><span>平均一头大象重多少吨</span><span>?</span><br><br><span>2</span><span>.</span><span>有一条</span><span>3</span><span>米长的绳子</span><span>,</span><span>剪掉</span><span>6</span><span>分米后</span><span>,</span><span>把剩下的平均分成</span><span>8</span><span>段</span><span>,</span><span>每段的长是多少分米</span><span>?</span><br><br><span>3</span><span>.</span><span>请按由轻到重的顺序把货物装上船。</span><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0815/2018815195420.png?m=0.8083244499952069"><br><br><span>4</span><span>.</span><span>水果公司运进大</span><span>量的水果</span><span>,</span><span>具体质量如下表</span><span>:</span><div><span><br></span></div><div><span><img src="https://www.szxuexiao.com/uploadimages/2018/0815/2018815195457.png?m=0.10014081794640073"><br></span></div><div><span><br></span></div><div><span>王先生准备购进</span><span>1</span><span>吨水果</span><span>,</span><span>他</span><span>可以怎样选择</span><span>?(</span><span>水果公司规定</span><span>:</span><span>选定的水果必须全部买走</span><span>)</span><span></span><br><br><span>(</span><span>1</span><span>)</span><span>选择两种水果。</span><span></span><br><br><span>(</span><span>2</span><span>)</span><span>选择三种水果。</span><span></span><br><br><span>★</span><span>附加题</span><span></span><br><br><span>勘测队工作人员要在一条长</span><span>5</span><span>千米的路的一侧每隔</span><span>1</span><span>千</span><span>米插一根标杆</span><span>,</span><span>道路的起点和终点也各插一根标杆</span><span>,</span><span>要完成这项工作</span><span>,</span><span>工作人员应准备多少根标杆</span><span>?</span><span></span><br><br><span>&nbsp;</span><br><br><span>&nbsp;</span><br><br><span>【参考答案】</span><span></span><br><br><span>一</span><span>、</span><span>1</span><span>.</span><span>千米</span><span> </span><span>米</span><span> </span><span>分米</span><span> </span><span>厘米</span><span> </span><span>毫米</span><span> </span><span>克</span><span> </span><span>千克</span><span> </span><span>吨</span><span> </span><span>2</span><span>.2 9 30 300 70 700 800 400</span><span></span><br><br><span>6000 7 3004 9 9 15 200 152 </span><span>3</span><span>.&lt; &gt; &gt; = &gt; &lt; &lt; &gt; </span><span></span><br><br><span>二、</span><span>1</span><span>.</span><span>&#10005;</span><span> </span><span>2</span><span>.</span><span>&#10005;</span><span> </span><span>3</span><span>.</span><span>√</span><span> </span><span>4</span><span>.</span><span>√</span><span> </span><span>5</span><span>.</span><span>&#10005;</span><span></span><br><br><span>三、</span><span>1</span><span>.</span><span>米</span><span> </span><span>千米</span><span> </span><span>吨</span><span> </span><span>千克</span><span> </span><span>毫米</span><span> </span><span>2</span><span>.</span><span>(</span><span>1</span><span>)</span><span>—</span><span>1</span><span>千克</span><span></span><br><br><span>(</span><span>2</span><span>)</span><span>—</span><span>30</span><span>千克</span><span> </span><span>(</span><span>3</span><span>)</span><span>—</span><span>3</span><span>吨</span><span> </span><span>(</span><span>4</span><span>)</span><span>—</span><span>60</span><span>克</span><span></span><br><br><span>四、</span><span>1</span><span>.28毫米</span><span> </span><span>2</span><span>.9</span><span>米</span><span>3</span><span>毫米</span><span>&lt;9</span><span>米</span><span>3</span><span>厘米</span><span>&lt;93</span><span>分米</span><span>&lt;9</span><span>千米</span><span>3</span><span>米</span><span> </span><span>3</span><span>.</span><span>略</span><br><br><span>五、</span><span>1</span><span>.20÷5=4</span><span>(</span><span>吨</span><span>)</span><span> </span><span>2</span><span>.3</span><span>米</span><span>=30</span><span>分米</span><span> 30- 6=24</span><span>(</span><span>分米</span><span>)</span><span> 24÷8=3</span><span>(</span><span>分米</span><span>)</span><span> </span><span>3</span><span>.460</span><span>克</span><span>&lt;580</span><span>克</span><span>&lt;3200</span><span>克</span><span>&lt;4</span><span>千</span><span>克</span><span>&lt;600</span><span>千克</span><span>&lt;2</span><span>吨</span><span> </span><span>4</span><span>.</span><span>略</span><span></span><br><br><span>附加题</span><span> 5÷1+1=6</span><span>(</span><span>根</span><span>)</span><span></span><br></div><div><span><br></span></div>