小学四年级数学上册第三单元检测试卷

<span style=" font-weight:bold; ">一、我会填。(每空各1分,共15分)</span><span style=" font-weight:bold; "></span><br><br><span>1、160的4倍是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;),12个103是(   ),125×80的积是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)位数,积的末尾有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)个0。</span><br><br><span>2、最小的两位数与最大的三位数的积是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>3、根据6×50=300直接写出下面两题的积。</span><br><br><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;18×50=(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;42×50=(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>4、一只猎狗奔跑的速度可达每小时35千米,可写作(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>小东骑自行车可达每分钟300米,可写作(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>5、一个农场去年收获小麦69731千克,大约是(  )万千克。</span><br><br><span>6、计算16×300时,可以先算(   ),再在积的末尾添(   )。</span><br><br><span>7、下面算式中,不同的图形表示不同的数,相同的图形表示相同的数,如果</span><br><br><span>△+□=200,□×5=80,那么△=(  ),□=(  )。</span><br><br><span>8、李强走一步的距离是63厘米,他从家到学校一共走了498步,他家到学校大约有(&nbsp;&nbsp;&nbsp;)米。</span><br><br><span style=" font-weight:bold; ">二、我会判。(对的打“√”错的打“×”)(每题各2分,共10分)</span><span style=" font-weight:bold; "></span><br><br><span>1、两个因数的末尾一共有几个0,积的末尾一定有几个0。………………(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>2、估算的结果一定比准确值大。…………………………………………&nbsp;(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>3、396×3≈1188……………………………………………………………(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>4、两个因数的乘积是300,如果一个因数乘6,另一个因数除以6,那么它们的积不变。………………………………………………………………………(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>5、路程×时间=速度…………………………………………………………(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span style=" font-weight:bold; ">三、我会选。(每题各2分,共10分)</span><br><br><span>1、一个因数不变,另一个因数扩大10倍,积(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、不变&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、扩大10倍&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、缩小10倍</span><br><br><span>2、两位数相乘的积是7200,如果一个因数不变,另一个因数除以100,那么积是(&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>A、7200&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、720&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、72</span><br><br><span>3、三位数乘两位数积是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、四位数&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、五位数&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、四位数或五位数</span><br><br><span>4、美园小区有五栋楼房,每栋有120户人家,小区共有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)户人家。&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><br><br><span>A、600&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、500&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、125</span><br><br><span>5、798×27的积的最高位是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span>X-k-b</span><span>&nbsp;</span><span>-1.-c</span><span>&nbsp;</span><span>-o-m</span><br><br><span>A、万位&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、千位&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、百位</span><br><br><span style=" font-weight:bold; ">四、我会算。(共34分)</span><span style=" font-weight:bold; "></span><br><br><span>1、口算下列各题。(每题各1分,共16分)</span><br><br><span>72×60=</span><span> </span><span>250×40=</span><span> </span><span>73×20=</span><span> </span><span>75×40=</span><br><br><span>81×50=</span><span> </span><span>15×4=</span><span> </span><span>43×200=</span><span> </span><span>75×500=</span><br><br><span>600×50=</span><span> </span><span>70×40=</span><span> </span><span>92×50=</span><span> </span><span>30×14=</span><br><br><span>59×42≈</span><span> </span><span>32×61≈</span><span> </span><span>993×19≈</span><span> </span><span>701×289≈</span><br><br><span>2、用竖式计算下列各题。(每题各3分,共18分)</span><br><br><span>162×20=        &nbsp;&nbsp;&nbsp;&nbsp;64×321=   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;     713×15=</span><br><br><span>308×21=       &nbsp;&nbsp;&nbsp; &nbsp;24×130=      &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  135×12=</span><br><br><span style=" font-weight:bold; ">五、我会列式计算。(每题各3分,共6分)</span><span style=" font-weight:bold; "></span><br><br><span>1、37的150倍加上3000的和是多少?   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2、153个12相加和是多少?</span><br><span style=" font-weight:bold; "></span><span style=" font-weight:bold; "></span><span style=" font-weight:bold; "></span><span style=" font-weight:bold; "></span><br><span style=" font-weight:bold; ">六、我会解决问题。(1-4每题各5分,共25分)</span><span style=" font-weight:bold; "></span><br><br><span>1、从甲地到乙地有320千米,一辆汽车3小时行驶180千米,照这样计算,5小时能赶到乙地吗?</span><br><br><span>2、一只山雀5天大约能吃800只害虫,照这样计算,一只山雀一个月大约能吃多少只害虫?(一个月按30天计算。)</span><br><br><span>3、新华书店为庆祝“六一”儿童节,买&nbsp;4套儿童百科送1套。一次买4套,每套便宜多少钱?(</span><span>每套45元)</span><br><br><span>4、新纪元学校四年级共需要做3700朵纸花进行装饰,每班每天做纸花95朵,那么13个班3天能做完这些纸花吗?</span><br><br><span>5、思雨花屋一部分花的价格和九月份卖出的盆数如下表:</span><br><div><span><br></span></div><div><span><img src="//www.szxuexiao.com/uploadimages/2012/1030/20121030155453.jpg?m=0.21142432396300137"><br></span></div><div><span><br></span></div><div><span><div>(1)每种花各卖了多少元?(3分)</div><div><br></div><div>(2)一共收入多少元?(2分)</div><div><br></div><div><strong>※ &nbsp;试一试。</strong></div><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2012/1030/2012103015568.jpg?m=0.19932624837383628"><br></div><div><br></div></span></div>