2018-2019学年小学四年级数学上册《第五单元》测试题及答案

<strong><span>一、填空</span></strong><br><br><strong><span>1、</span></strong><span>420里面有( &nbsp;&nbsp;&nbsp;&nbsp;)个70,350是50的( &nbsp;&nbsp;&nbsp;&nbsp;)倍。</span><br><br><strong><span>2、</span></strong><span>6□8÷80≈8,□里填( &nbsp;&nbsp;&nbsp;&nbsp;)最接近实际结果。</span><br><br><strong><span>3、</span></strong><span>要使□51÷46的商是两位数,□中最小填( &nbsp;&nbsp;&nbsp;&nbsp;);如果商是一位数,□中最大填( &nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><strong><span>4、</span></strong><span>537÷63把63看作60来试商,商容易( &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。(填“偏大”或“偏小”)。</span><br><br><strong><span>5、</span></strong><span>被除数乘10后,要使商不变,除数应( &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>6、如果A÷18=16……B,则B最大是( &nbsp;&nbsp;&nbsp;&nbsp;),当B是最大时,A是( &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><strong><span>二、判断。(对的画“√”错的画“×”)</span></strong><br><br><strong><span>1、</span></strong><span>两位数除三位数,商一定是两位数。( &nbsp;&nbsp;&nbsp;)</span><br><br><strong><span>2、</span></strong><span>782÷20=38……22。( &nbsp;&nbsp;&nbsp;)</span><br><br><strong><span>3、</span></strong><span>计算除数是两位数的除法,如果用“五入”法试商,商易偏小。( &nbsp;&nbsp;&nbsp;)</span><br><br><strong><span>4、</span></strong><span>两数相除的商是6,如果被除数和除数同时除以3,商是2。( &nbsp;&nbsp;&nbsp;)</span><br><br><strong><span>5、</span></strong><span>被除数的末尾有几个0,商的末尾也有几个0。( &nbsp;&nbsp;&nbsp;)</span><br><br><strong><span>三、选择。(将正确的序号填入括号里)</span></strong><br><br><strong><span>1、</span></strong><span>商是一位数的是( &nbsp;&nbsp;&nbsp;)。</span><br><br><strong><span>A、</span></strong><span>325÷37    </span><strong><span>B、</span></strong><span>638÷62</span>    <strong><span>C、</span></strong><span>732÷35</span><br><br><strong><span>2、</span></strong><span>一个数除以25,商是17,余数是11,这个数是( &nbsp;&nbsp;&nbsp;)。</span><br><br><strong><span>A、</span></strong><span>414</span>    <strong><span>B、</span></strong><span>436</span>    <strong><span>C、</span></strong><span>700</span><br><br><strong><span>3、</span></strong><span>2100÷300=7,根据商不变的规律,下面算式正确的是( &nbsp;&nbsp;&nbsp;)。</span><br><br><strong><span>A、</span></strong><span>210÷3=7</span>    <strong><span>B、</span></strong><span>2100÷30=7</span>    <strong><span>C、</span></strong><span>21÷3=7</span><br><br><strong><span>4、</span></strong><span>下列竖式计算正确的是( &nbsp;&nbsp;&nbsp;)。</span><br><br><img src="https://www.szxuexiao.com/uploadimages/2018/1229/20181229105859.png?m=0.6936494436697065"><br><br><strong><span>5、</span></strong><span>被除数扩大到原来的2倍,要使商不变,除数应( &nbsp;&nbsp;&nbsp;)。</span><br><br><strong><span>A、</span></strong><span>扩大到原来的4倍 &nbsp;&nbsp;</span><strong><span>B、</span></strong><span>扩大到原来的2倍 &nbsp;&nbsp;</span><strong><span>C、</span></strong><span>缩小到原来的</span><span>&nbsp;</span><br><br><strong><span>四、计算。</span></strong><br><br><span>1、直接写得数。</span><br><br><span>420÷60=  560÷70=</span>  <span>630÷21=</span>  <span>780÷39=</span><br><br><span>600÷40=</span>  <span>720÷12=</span>  <span>1000÷25=</span>  <span>460÷23=</span><br><br><span>298÷48≈</span>  <span>421÷58≈</span>  <span>321÷82≈</span>  <span>605÷32≈</span><br><br><span>793÷39≈</span>  <span>543÷59≈</span>  <span>644÷82≈</span>  <span>286÷41≈</span><br><br><span>2、笔算。</span><br><br><span>244÷81=</span>    <span>762÷32=</span>    <span>13900÷600=</span><br><br><br><strong><span>五、解决问题。</span></strong><br><br><span>1、一套广州亚运后吉祥物的售价是40元,王老师用272元可以买几套广州亚运会吉祥物?</span><br><br><span>2、李叔叔一个星期做完了210个零件。照这样计算,七月份全月能做多少个零件?</span><br><br><span>3、动物园里一头大象平均一天要吃200千克食物,饲养员叔叔准备了3吨食物,够一头大象吃20天吗?</span><br><br><span>4、全校师生去旅游,共有130人,每辆车限载客35人,需要准备几辆车?</span><br><br><span>5、京沪高铁大约长1312千米,动车组列车从北京到上海大约4小时,而普通列车大约8小时,那么动车组列车比普通列车每小时快多少千米?</span><br><br><br><div style="text-align: center;"><strong><font color="#38761d">2018-2019学年小学四年级数学上册《第五单元》测试题参考答案</font></strong></div><br><strong><span>一、1、</span></strong><span>6 &nbsp;7 &nbsp;&nbsp;</span><strong><span>2、</span></strong><span>3 &nbsp;&nbsp;&nbsp;</span><strong><span>3、</span></strong><span>5 &nbsp;4 &nbsp;&nbsp;&nbsp;</span><strong><span>4、</span></strong><span>偏大 &nbsp;&nbsp;</span><strong><span>5、</span></strong><span>乘10 &nbsp;&nbsp;</span><strong><span>6、</span></strong><span>17 &nbsp;305</span><br><br><strong><span>二、</span></strong><span>1、× &nbsp;&nbsp;&nbsp;2、× &nbsp;&nbsp;3、√ &nbsp;&nbsp;4、× &nbsp;&nbsp;5、×</span><br><br><strong><span>三、</span></strong><span>1、A &nbsp;&nbsp;&nbsp;&nbsp;2、B &nbsp;&nbsp;&nbsp;3、C &nbsp;&nbsp;&nbsp;4、B &nbsp;&nbsp;&nbsp;&nbsp;5、B</span><br><br><strong><span>四、1、</span></strong><span>7 &nbsp;&nbsp;8 &nbsp;30 &nbsp;20 &nbsp;15 &nbsp;60 &nbsp;40 &nbsp;20 &nbsp;6 &nbsp;&nbsp;7 &nbsp;&nbsp;4 &nbsp;&nbsp;20 &nbsp;&nbsp;20 &nbsp;&nbsp;9 &nbsp;&nbsp;8 &nbsp;&nbsp;7</span><br><br><span>&nbsp; </span><strong><span>2、</span></strong><span>3……1 &nbsp;&nbsp;23……26 &nbsp;&nbsp;23……100</span><br><br><strong><span>五、</span></strong><span>1、272÷40=6(套)……32(元)</span><br><br><span>&nbsp; 2、210÷7×31=930(个)</span><br><br><span>&nbsp; 3、解法一: 200×20=4000(千克)=4(吨) &nbsp;4吨&gt;3吨 &nbsp;不够</span><br><br><span>解法二:3吨=3000千克 &nbsp;3000÷200=15(天) &nbsp;15天&lt;20天 &nbsp;不够</span><br><br><span>4、130÷35=3(辆)……25(人) &nbsp;&nbsp;3+1=4(辆)</span><br><br><span>5、1312÷4-1312÷8=328-164=164(千米)</span><br><div><span><br></span></div>