2013-2014学年六年级数学第一学期思维和实践操作测试试卷及答案

<div style="text-align: center;"><strong><font color="#ff0000">2013-2014学年小学六年级<span>数学</span>第一学期思维和实践操作测试</font></strong></div><div><br><div style="text-align: center;">班级_____姓名_____</div><br><strong><span>一、选择题</span><span>。25%</span></strong></div><div><span><br></span><span>1、将A组的1/5给B组,两组人数相等,原A组比B组多(&nbsp;&nbsp;&nbsp;</span><span>B</span><span>&nbsp;&nbsp;)</span><span><br></span><span><br></span></div><div><span>A、1/5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、2/5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、2/3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、1/4</span><span><br></span><span><br></span></div><div><span>2、将平行四边形一条边上的两个端点和它对边上任意一点连接,连成的三角形的面积是平行四边形面积的(&nbsp;&nbsp;&nbsp;&nbsp;</span><span>A</span><span>&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span><br></span><span><br></span></div><div><span>A、1/2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、1/3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、1/4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、1/5</span><span><br></span><span><br></span></div><div><span>3、甲、乙两人有同样多的钱(不是1元),甲用去2/5元,乙用去2/5,( </span><span>A</span><span>   )剩下的钱多一些。</span><br><br><span>A、甲    B、乙     C、一样多    D、无法确定</span><span><br></span><span><br></span></div><div><span>4、给一个整除的除法算式中被除数乘20%,除数除以20%,商(  </span><span>D</span><span>  )</span><br><br><span>A、不变   B、扩大5倍  C、缩小5倍  D、缩小25倍。</span><span><br></span><span><br></span></div><div><span>5、一杯牛奶喝去20%后加满水搅匀,再喝去50%,这时杯中纯牛奶占杯子容量的(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span>B</span><span>&nbsp;&nbsp;)</span><span><br></span><span><br></span></div><div><span>A、30%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、40%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、50%&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、80%</span><br><br><strong><span>二</span><span>、</span><span>填空</span><span>题</span><span>。25%</span></strong></div><div><span><br></span><span>1</span><span>、给3/7&nbsp;的分子加上9,要使分数大小不变,分母应(&nbsp;</span><span>加21或扩大4倍</span><span>&nbsp;)。</span><span><br></span><span><br></span></div><div><span>2</span><span>、</span><span>60的20</span><span>%</span><span>正好是一个数的75</span><span>%</span><span>,这个数是(&nbsp;&nbsp;16&nbsp;&nbsp;)。</span><span><br></span><span><br></span></div><div><span>3</span><span>、</span><span>饲养厂鸡的只数比鸭的只数多25%,那么,鸭的只数比鸡的只数少(&nbsp;&nbsp;20&nbsp;&nbsp;)%</span><span>&nbsp;。</span><br><br><span>4</span><span>、小红看一本书,已看的页数与未看的页数的比是1:5,如果再看10页这时已看页数占全书总页数的25%,这本书共(&nbsp;&nbsp;</span><span>120</span><span>&nbsp;&nbsp;&nbsp;&nbsp;)页。</span><br><br><span>5、一张圆形纸片的半径是3厘米,一张正方形纸片上的边长是4厘米。两张纸片重叠一部分放在桌面上,覆盖桌面的面积为38平方厘米。问:两张纸片重合部分的面积是( 6.28  )。</span><br><br><strong><span>三、计算题(</span><span>能简算简算)。20%</span></strong><br><br><img src="//www.szxuexiao.com/uploadimages/2013/1204/2013124135012.jpg?m=0.5491173733025789"><br><br><strong>四、求图中阴影部分的周长(单位:厘米)。</strong>10%<br><br><img src="//www.szxuexiao.com/uploadimages/2013/1204/2013124135147.jpg?m=0.8933036162052304"><br><br><span><strong>五、求图中阴影部分的面积(单位:厘米)。20%</strong></span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/1204/2013124135237.jpg?m=0.2031294850166887"><br></div>