<strong><span>一、口算</span><span style="方正楷体_GBK;等线;;">(</span><span>13</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><span>1</span><span>.</span><span>口算</span><span>23+45</span><span>。想</span><span>:</span><span>因为</span><span>23+</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>所以</span><span>23+45=</span><span>(</span><span> </span><span>)</span><span>。</span><span></span><br><br><span>2</span><span>.</span><span>口算</span><span>35-13</span><span>。想</span><span>:</span><span>30-10=</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>)</span><span>=</span><span>(</span><span> </span><span>),</span><span>所以</span><span>35- 13=</span><span>(</span><span> </span><span>)</span><span>。</span><span></span><br><br><span>3</span><span>.</span><span>口算</span><span>160+380</span><span>。想</span><span>:</span><span>因为</span><span>16+38=54</span><span>,</span><span>所以</span><span>160+380=</span><span>(</span><span> </span><span>)</span><span>。</span><span></span><br><br><span>4</span><span>.</span><span>比</span><span>47</span><span>多</span><span>38</span><span>的数是</span><span>(</span><span> </span><span>),</span><span>比</span><span>91</span><span>少</span><span>36</span><span>的数是</span><span>(</span><span> </span><span>)</span><span>。</span><span></span><br><br><span>5</span><span>.75- </span><span>(</span><span> </span><span>)</span><span>=39 410+</span><span>(</span><span> </span><span>)</span><span>=700</span><span></span><br><br><span>(</span><span> </span><span>)</span><span>- 620=80</span><span></span><span> </span><span>(</span><span> </span><span>)</span><span>+210=990</span><span></span><br><br><span>(</span><span> </span><span>)</span><span>- 49=41</span><span></span><span> 730- </span><span>(</span><span> </span><span>)</span><span>=450</span><span></span><br><br><span>6</span><span>.653+271</span><span>≈</span><span>(</span><span> </span><span>)</span><span></span><span> </span><span> </span><span>496- 193</span><span>≈</span><span>(</span><span> </span><span>)</span><span> </span><span> 713- 398</span><span>≈</span><span>(</span><span> </span><span>)</span><span></span><br><br><strong><span>二、直接写得数</span><span style="方正楷体_GBK;等线;;">(</span><span>9</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><span>43+25= 73-17=</span><span> </span><span> 48+52=</span><span> </span><span>64-17=</span><span></span><br><br><span>480+210=</span><span> </span><span>48-24=</span><span> </span><span> 74-36= </span><span></span><span>56+37=</span><span> </span><span> 450-210=</span><span></span><br><br><strong><span>三、用竖式计算</span><span style="方正楷体_GBK;等线;;">(</span><span>12</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><span>530+460=</span><span></span><span> 480+340=</span><br><span> </span><br><br><span>490-240=</span><span></span><span> 540-380=</span><span></span><br><br><strong><span>四、在</span><span>○</span><span>里填上“</span><span>></span><span>”“</span><span><</span><span>”“</span><span>=</span><span>”</span><span style="方正楷体_GBK;等线;;">(</span><span>6</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><span>840-340</span><span>○</span><span>940-520</span><span> </span><span> 580+150</span><span>○</span><span>580-150</span><span></span><br><br><span>770+340</span><span>○</span><span>770-340</span><span> </span><span> 950-470</span><span>○</span><span>900-380</span><span></span><br><br><span>540+370</span><span>○</span><span>550+360</span><span> </span><span> 650-340</span><span>○</span><span>650-350</span><span></span><br><br><strong><span>五、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>✕</span><span>”</span><span>,</span><span>并改正</span><span>)</span><span style="方正楷体_GBK;等线;;">(</span><span>6</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span style="方正楷体_GBK;等线;;"></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0808/20188812616.png?m=0.8753904689959835"><br><br><strong><span>六、连一连</span><span style="方正楷体_GBK;等线;;">(</span><span>8</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0808/20188812648.png?m=0.7851978991227335"><br><br><strong><span>七、把得数填在空格内</span><span style="方正楷体_GBK;等线;;">(</span><span>10</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0808/20188812753.png?m=0.8484652011368423"><br><br><strong><span>八、解决问题</span><span style="方正楷体_GBK;等线;;">(</span><span>36</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span></strong><span></span><br><br><span>1</span><span>.</span><span>学校图书馆有故事书</span><span>380</span><span>本</span><span>,</span><span>连环画比故事书多</span><span>170</span><span>本</span><span>,</span><span>连环画有多少本</span><span>?</span><span style="方正楷体_GBK;等线;;">(</span><span>6</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span><br><br><span>2</span><span>.</span><span>一棵果树上有很多果子</span><span>,</span><span>小猴子摘下</span><span>24</span><span>个</span><span>,</span><span>还剩</span><span>49</span><span>个</span><span>,</span><span>这棵果树上原来共有多少个果子</span><span>?</span><span style="方正楷体_GBK;等线;;">(</span><span>6</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span><span style="方正楷体_GBK;等线;;"></span><br><br><span>3</span><span>.</span><span>一列火车有</span><span>750</span><span>个座位</span><span>,</span><span>开车时有</span><span>480</span><span>名乘客</span><span>,</span><span>还有多少个座位空着</span><span>?</span><span style="方正楷体_GBK;等线;;">(</span><span>6</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span><span style="方正楷体_GBK;等线;;"></span><br><br><span>4</span><span>.</span><span style="方正楷体_GBK;等线;;">(</span><span>10</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0808/20188812838.png?m=0.7218720499992919"><br><br><span>(</span><span>1</span><span>)</span><span>一班和二班的学生全上车</span><span>,</span><span>能坐下吗</span><span>?</span><br><br><span>(</span><span>2</span><span>)</span><span>班主任同乘行吗</span><span>?(</span><span>每班有一个班主任</span><span>)</span><br><br><span>5</span><span>.</span><span style="方正楷体_GBK;等线;;">(</span><span>8</span><span style="方正楷体_GBK;等线;等线;;">分</span><span style="方正楷体_GBK;等线;;">)</span><span style="方正楷体_GBK;等线;;"></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0808/201888121127.png?m=0.18915261464387068"><br><br><span style="等线;">(1) </span><span style="等线;">买一个茶几和一把电脑椅大约需花多少钱</span><span style="等线;">?</span><span style="等线;"></span><br><br><span style="等线;">(2) </span><span style="等线;"></span><br><br><span style="等线;">(3) </span><span style="等线;">一个沙发比一个茶几大约贵多少钱</span><span style="等线;">?</span><span style="等线;"></span><br><br><span style="等线;">(4) </span><span style="等线;"></span><br><br><strong><span>★</span><span>附加题</span></strong><span></span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/0808/201888121222.png?m=0.016115639532486847"><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2018年小学三年级数学上册《第二单元》测试题参考答案</font></strong></div><br><span>一、</span><span>1</span><span>.40 63 63 5 68 68 </span><span>2</span><span>.20 5 3 2 20 2 22 22 </span><span>3</span><span>.540 </span><span>4</span><span>.85 55 </span><span>5</span><span>.36</span><span></span><br><br><span>290 700 780 90 280 </span><span>6</span><span>.920 300 310</span><span></span><br><br><span>二、</span><span>68 56 100 47 690 24 38 93 </span><span>240</span><span></span><br><br><span>三、</span><span>990 820 250 160</span><span>(</span><span>竖式略</span><span>)</span><span></span><br><br><span>四、</span><span>> > > < = ></span><span></span><br><br><span>五、</span><span> </span><span></span><br><div><br></div><div><img src="https://www.szxuexiao.com/uploadimages/2018/0808/20188812152.png?m=0.05155291219875613"><br></div><div><br></div><span>六、</span><div><br></div><div><span></span><img src="https://www.szxuexiao.com/uploadimages/2018/0808/201888121544.png?m=0.6049300579349648"><br><br><span>七、</span><span>320 370 440 580 670 470 440 290 180 60</span><span></span><br><br><span>八、</span><span>1</span><span>.380+170=550</span><span>(</span><span>本</span><span>)</span><span> </span><span>2</span><span>.49+24=73</span><span>(</span><span>个</span><span>)</span><span> </span><span>3</span><span>.750- 480=270</span><span>(</span><span>个</span><span>)</span><span> </span><span>4</span><span>.</span><span>(</span><span>1</span><span>)</span><span>34+32=66</span><span>(</span><span>人</span><span>)</span><span> 66<70 </span><span>答</span><span>:</span><span>能坐下。</span><span> </span><span>(</span><span>2</span><span>)</span><span>66+2=68</span><span>(</span><span>人</span><span>)</span><span> 68<70 </span><span>答</span><span>:</span><span>班主任能同乘。</span><span> </span><span>5</span><span>.</span><span>(</span><span>1</span><span>)</span><span>195+207</span><span>≈</span><span>400</span><span>(</span><span>元</span><span>)</span><span> </span><span>(</span><span>2</span><span>)</span><span>898- 195</span><span>≈</span><span>700</span><span>(</span><span>元</span><span>)</span><span></span><br><br><span><strong>附加题</strong></span></div><div><span><br></span></div><div><span>4 8 0</span><span>[</span><font color="#ff0000"><span>提示</span><span>:</span><span>两个相同的数相加</span><span>,</span><span>和是双数。这道题先看百位</span><span>,</span><span>爱</span><span>+</span><span>爱</span><span>=9</span><span>,</span><span>肯定是十位向百位进了</span><span>1</span><span>,</span><span>所以百位上的爱</span><span>=4</span><span>,</span><span>由于十位向百位进了</span><span>1</span><span>,</span><span>再看十位数是</span><span>6</span><span>,</span><span>所以十位上的科</span><span>+</span><span>科</span><span>=16</span><span>,</span><span>科</span><span>=8</span><span>,</span><span>个位上的学</span><span>+</span><span>学</span><span>=0</span><span>,</span><span>学</span><span>=0</span><span>,</span><span>即</span><span>480+480=960</span><span>。</span></font><span>]</span><span></span><br></div><div><span><br></span></div>
三年级上