<div style="text-align: center;"><font color="#ff0000"><strong>2016年小学六年级数学上册</strong><strong>第六单元测试卷</strong></font></div><br><strong><span>一、</span><span>填空题。(19分)</span></strong><br><br><span>1、右图中的阴影部分用分数表示是( ),</span><span>用小数表示是( ),用百分数表示是( )。</span><div><br></div><div><img src="//www.szxuexiao.com/uploadimages/2016/1114/20161114114114.png?m=0.6397208624637374"><br><br><span>2、3÷( )=</span>( )/15<span>=0.6=</span><span>( )%.</span><br><br><span>3、在7/8</span><span>、0.8、0.87、87%这四个数中,最大的数是( ),最小的数是( )。</span><br><br><span>4、500的70%是( ),( )的25%是26。</span><br><br><span>5、仓库里有15吨钢材,第一次用去总数的20%,第二次用去1/2</span><span>吨,还剩下( )吨。</span><br><br><span>6、比20多25%的数是( ),20比( )多25%。</span><br><br><span>7、五(1)班有学生40人,某天有2人请病假,这天的出勤率是( )。</span><br><br><span>8、一袋大米的80%比它的1/2</span><span>多24千克,这袋大米重( )千克。</span><br><br><span>9、五年级今天的出勤率是96%,有2人请病假,该班今天的出勤( )人。</span><br><br><span>10、把一个正方体切分成相等的三个长方体,这三个长方体的表面积之和比原正方体的表面积增加( )%。</span><br><br><span>11、被减数、减数与差的和是10.8,已知减数是差的80%,减数是( )。</span><br><br><span>12、一捆电线,用去全长的</span>1/5<span>,再接上60米,结果比原来长40%,电线原来长( )米。</span><br><br><strong><span>二、</span><span>判断题。(5分)</span></strong><br><br><span>1、把4.5的小数点去掉,再添上百分号,这个数缩小10倍。 ( )</span></div><div><span><br></span></div><div><span>2、2/5</span><span>吨=0.4吨=40%吨。 ( )</span><br><br><span>3、男生占全班人数的60%,则女生是男生的</span>2/3<span>。( )</span><br><br><span>4、加工120个零件,全部合格,合格率是120%。 ( )</span><br><br><span style=" ˎ̥; ">5</span><span>、一种商品,先涨价</span><span style=" ˎ̥; ">20%</span><span>,再降价</span><span style=" ˎ̥; ">20%</span><span>,现价与原价相等。</span><span>( )</span><br><br><strong><span>三、</span><span>选择题。(6分)</span></strong><br><br><span>1、7厘米是1米的 ( )。</span><br><br><span>①</span>7/10 <span> ②7%米 ③7%</span><br><br><span>2、六年级有50人,昨天实到49人。六年级昨天的缺勤率是( )</span><br><br><span>①49% ②98% ③2%</span><br><br><span>3、小明在一次口算比赛中,做对了80题,错了20题,这次口算的正确率是( )。</span><br><br><span>①25% ②80% ③75%</span><br><br><span>4、甲杯中有水20克,乙杯中有水25克,甲杯中放入7克糖,乙杯中放入9克糖,现在( )。</span><br><br><span>①甲杯水甜 ②乙杯水甜 ③两杯水一样甜</span><br><br><span>5、一个平行四边形的底减少</span>1/3<span>,要使它的面积不变,高应该增加( )。</span><br><span><br></span></div><div><span>①25% ②33.3% </span><span>③50%</span><br><br><span>6、甲车的速度比乙车快40%,两车同时从两站相向而行,相遇时甲车比乙车多行( )。</span><br><br><span>①28.6% ②40% </span><span>③60%</span><br><br><span><strong>四.计算。(36分)</strong></span><br><br><span>1、</span><span>直接写得数。(6分)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/1114/20161114122450.png?m=0.6220507878999348"><br><br><span>2、</span><span>解方程。(12分)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/1114/20161114122555.png?m=0.823764050360686"><br><br><span>3.计算。(能简算的要用简便方法计算)(18分)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2016/1114/2016111412275.png?m=0.5303956097700882"><br><br><strong><span>五、把下列各数从大到小排列。(每题</span><span>2</span><span>分,共</span><span>6</span><span>分)</span></strong></div><div><span><br></span><span>1</span><span>.</span><span></span><span></span><span>23 67% 0.666</span><br><br><br><span>2.</span><span></span><span></span><span>3.75% 37.5% 0.357</span><br><br><span> </span><br><br><span>3.</span><span></span><span></span><span>128.5% 127 1.29</span><br><br><strong><span>六</span><span>、应用题</span><span>(28分)</span></strong></div><div><span><br></span><span>(1)红星机械厂计划生产零件1000个,结果超产200个,完成计划的百分之几?</span><br><span><br></span><span>(2)一堆沙子用去20%,还剩下1120吨,这堆沙子有多少吨?</span><span>(4分)</span><br><span><br></span></div><div><span>(</span><span>3</span><span>)</span><span>某厂的一种产品,原来每件成本</span><span>96</span><span>元,技术革新后,每件成本降低到了</span><span>84</span><span>元,每件成本降低了百分之几?</span><br><br><span>(</span><span>4</span><span>)</span><span>、某小学今年计划全年用水</span><span>2</span><span>0</span><span>0</span><span>吨,比去年节约用水5</span><span>0</span><span>吨,今年比去年计划节约用水百分之几?</span><br><span><br></span></div><div><span>(</span><span>5</span><span>)</span><span>、加工一种零件,现在每天加工</span><span>1500</span><span>个,比过去每天多加工</span><span>300</span><span>个,现在每天加工的零件个数比过去增加百分之几?</span><br><span><br></span><span>(6)有甲、乙两个粮食仓库,如果从甲仓库运10吨粮食到乙仓库,这时甲仓库的存粮是乙仓库的40%,已知甲仓库原存粮110吨,乙仓库原存粮多少吨?</span><span><br></span><br></div>
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