2014-2015学年小学六年级数学《分数除法》单元测试题

<div style="text-align: center;"><font color="#ff0000"><br></font></div><span style=" font-weight:bold; "><div style="text-align: center;"><font color="#ff0000">分&nbsp;数&nbsp;除&nbsp;法单元检测题(秘制)</font></div></span><br><span style=" font-weight:bold; ">一、填空。(每空1分,共20分。)</span><span style=" font-weight:bold; "></span><br><br><span>1.&nbsp;24的</span>3/4</rp></ruby><span>是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;);(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)的</span>3/4</rp></ruby><span>是24。</span><br><br><span>2.&nbsp;根据乘法算式</span>9/10</rp></ruby><span>×</span>2/3</rp></ruby><span>=</span>3/5</rp></ruby><span>,可以直接改写出的两道除法算式是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)和(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>3.&nbsp;一桶油倒出的20千克,恰好占全桶油的</span><span>,这桶油还剩下(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)千克。</span><br><br><span>4.&nbsp;</span>1/6</rp></ruby><span>︰</span>4/9</rp></ruby><span>的最简整数比是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;);0.2︰0.08的比值是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>5.&nbsp;5︰4=(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)÷20=</span>20/( )</rp></ruby><span>=30︰(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)=(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)(小数)。</span><br><br><span>6.&nbsp;一个正方形的周长是</span>4/5</rp></ruby><span>m,这个正方形的边长是(&nbsp;&nbsp;&nbsp;&nbsp;)m,面积是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)平方米。</span><br><br><span>7.&nbsp;如果甲数与乙数的比是5︰7,那么甲数是乙数的</span><ruby>( )<rp>(</rp><rt>( )</rt><rp>)</rp></ruby><span>,乙数是甲数的(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)倍。</span><br><br><span>8.</span><span>的前项加上8,如果要使比值不变,后项应该乘上(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>9.一袋大米吃去24千克,正好是这袋大米的</span><span>,单位“1”的量是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;),等量关系式是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>10、学校给六年级买来45本儿童读物,按4:5分别借给一班和二班,一班得( &nbsp;&nbsp;)本,二班得( &nbsp;&nbsp;)本</span><br><br><span style=" font-weight:bold; ">二、请你来当小裁判。(5分)</span><span style=" font-weight:bold; "></span><br><br><span>1、两个分数相除,商一定大于被除数。(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)&nbsp;</span><br><br><span>2、化简15∶5的结果是5。(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>3、把1/2米的铁丝平均分成4段,每段长1/4米。(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>4、9/10÷3/4÷8=10/9×3/4×1/8=5/27&nbsp;&nbsp;(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span>5、5厘米∶20米=5÷20=1/4(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><br><br><span style=" font-weight:bold; ">三、选择题(20分)</span><br><br><span>1、a、b、c都是不为0的自然数,如果a×</span><span>=b×</span><span>=c,那么(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)最大。</span><br><br><span>A、a&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span>b&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span>c</span><br><br><span>2、一个数的</span><span>是12,这个数与12相差(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A</span>、<span>8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span>4</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span>18</span><br><br><span>3、一个数除以</span><span>,商一定(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)被除数。</span><br><br><span>A</span>、<span>大于&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span>小于&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span>不小于&nbsp;&nbsp;&nbsp;&nbsp;D</span>、<span>不大于</span><br><br><span>4、A÷</span><span>=B×</span><br><br><span>A</span>、<span>大于&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B</span>、<span>小于&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C</span>、<span>等于&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D</span>、<span>无法比较</span><br><br><span>5、“什么数的1/6是2/9,求这个数&nbsp;。”正确的算式是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、1/6÷2/9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、2/9÷1/6&nbsp;&nbsp;&nbsp;&nbsp;C、1/6×2/9</span><br><br><span>6、a是b的1/4,b就是a的(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、4倍&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B1/4、&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、3/4</span><br><br><span>7、“乙的7/11相当于甲”,应该把(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)看作单位“1”。</span><br><br><span>A、甲&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、乙&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、无法确定</span><br><br><span>8、1克盐放入100克水中,盐与盐水的比是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、1∶100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、100∶1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、1∶101</span><br><br><span>9、从家到学校,姐姐用8分,妹妹用9分。姐姐和妹妹每分所行路程的比是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、8∶9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、9∶8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、8∶17</span><br><br><span>10、最简比的前项和后项一定是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>A、质数&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、奇数&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、互质数</span><br><br><span style=" font-weight:bold; ">四、计算。(共42分。)</span><span style=" font-weight:bold; "></span><br><br><span>1.直接写出得数。(每题1分,共12分。)</span><br><br>5/7</rp></ruby><span>÷5=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>8/9</rp></ruby><span>÷4=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>1/6</rp></ruby><span>÷2=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>2/3</rp></ruby><span>÷3=</span><br><br>1/2</rp></ruby><span>÷</span>1/4</rp></ruby><span>=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>2/3</rp></ruby><span>÷</span>1/3</rp></ruby><span>=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>2/5</rp></ruby><span>÷</span>2/5</rp></ruby><span>=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>5/12</rp></ruby><span>×</span>2/3</rp></ruby><span>=</span><br><br><span>1÷</span>5/8</rp></ruby><span>= &nbsp; &nbsp; &nbsp; &nbsp;15÷</span>1/5</rp></ruby><span>=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>1/2</rp></ruby><span>÷</span>5/6</rp></ruby><span>=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>2/3</rp></ruby><span>÷</span>8/9</rp></ruby><span>=</span><br><br><span>2.计算下面各题。(每题2分,共8分。)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0918/2014918144550.jpg?m=0.87317731580697"><br><br><span>3.解方程。(每题2分,共8分。)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0918/2014918144721.jpg?m=0.09094680310226977"><br><br><span>4.列式(或列方程)计算。(每题4分,共8分。)</span><br><br><span>(1)</span>9/14</rp></ruby><span>除以</span>4/5</rp></ruby><span>的商乘</span>8/15</rp></ruby><span>,积是多少?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)一个数的</span>4/15</rp></ruby><span>是</span>8/9</rp></ruby><span>的</span>1/6</rp></ruby><span>。这个数是多少?</span><br><br><span>5、看线段图列式(或列方程)解答。(每题3分,共6分)</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0918/2014918144825.jpg?m=0.7594910764601082"><br><br><span style=" font-family: 宋体;"><strong>五、解决问题:(13分)</strong></span><span style=" font-family: 宋体;"></span><br><br><span>1、长安国际酒店运来一些大米,吃了2/5</span><span>,还剩下2吨,酒店运来大米多少吨?</span><br><br>2、某工厂有女职工1008人,占全厂职工总数的 6/11,全厂职工共有多少人?<br><br><span>3、果园里有桃树80棵,是梨树的4/5</span><span>,梨树又是&nbsp;苹果树的2/3</span><span>,果园里有苹果树多少棵?</span><br><br><span>4、十月份各家用电情况表</span><div><br> <table width="100%" border="1"><tbody><tr><td><br>住&nbsp;&nbsp;户<br></td><td><br>分电表(度数)<br></td><td><br>应付电费(元)<br></td></tr><tr><td><br>王&nbsp;家<br></td><td><br>40<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>张&nbsp;家<br></td><td><br>38<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>赵&nbsp;家<br></td><td><br>29<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>李&nbsp;家<br></td><td><br>53<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span>十月份共付电费</span><span>83.2</span><span>元,按每家分电表的度数分摊电费。</span><span>(请写出计算过程)并求出各家应收多少电费?</span><br><br></div></div>