人教版小学六年级数学上册第八单元数学广角检测题及答案

<div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">人教版六年级上册数学第八单元检测题</font></span></div><div style="text-align: center;"><font color="#ff0000"><br></font></div><span style=" font-family:黑体; mso-hansi- font-weight:bold; mso-font-kerning:; "><div style="text-align: center;"><font color="#ff0000">(数学广角)</font></div></span><br><div style="text-align: center;">姓名__________ &nbsp;&nbsp;座号_______&nbsp;&nbsp;&nbsp;成绩___________</div><br><span style=" font-weight:bold; mso-font-kerning:; ">一.</span><span style=" font-weight:bold; mso-font-kerning:; ">填一填。(每小题2分,共16</span><span style=" font-weight:bold; mso-font-kerning:; ">分</span><span style=" font-weight:bold; mso-font-kerning:; ">)</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style="font-family:微软雅黑; mso-hansi- mso-font-kerning:; background:; mso-shading:; ">1、</span><span style=" font-family:微软雅黑; mso-hansi- mso-font-kerning:; background:; mso-shading:; ">今有鸡兔共35只,脚共有94只</span><span style=" 微软雅黑; mso-font-kerning:; background:; mso-shading:; ">,</span><span style=" mso-font-kerning:; ">鸡(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)只,兔(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)只。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2、</span><span style=" mso-font-kerning:; ">有龟和鹤共30只,龟的腿和鹤的腿共有82条。龟()只、鹤()只。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3、停车场有三轮车和小轿车共7辆,总共有25个轮子。三轮车有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)辆,小轿车有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)辆。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4、2元和5元的人民币共9张,合计33元。2元有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)张,5元有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)张。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、28名师生去公园划船,恰好坐满了大、小船共5只。大船每只坐6人,小船每只坐4人,租了(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)只小船和租了(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)只大船。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">6、</span><span style=" mso-font-kerning:; ">松鼠妈妈采松子,晴天每天采</span><span style=" mso-font-kerning:; ">20</span><span style=" mso-font-kerning:; ">个,雨天每天可采</span><span style=" mso-font-kerning:; ">12</span><span style=" mso-font-kerning:; ">个,它一连采了</span><span style=" mso-font-kerning:; ">112</span><span style=" mso-font-kerning:; ">个,平均每天采</span><span style=" mso-font-kerning:; ">14</span><span style=" mso-font-kerning:; ">个,这几天中有</span><span style=" mso-font-kerning:; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; ">天是雨天。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">7、</span><span style=" mso-font-kerning:; ">一个工人要将63个零件装进两种盒子里,每只大盒子装12个零件,每只小盒子装5&nbsp;</span><span style=" mso-font-kerning:; ">个零件,需要准备4个大盒子和(&nbsp;&nbsp;&nbsp;&nbsp;)个小盒子才能把这些零件装下去。</span><span style=" mso-font-kerning:; "></span><br><br><span style="font-family: 宋体; background: rgb(255, 255, 255);">8、口袋里有1个黄球、2个白球、3个绿球和4个红球,这些球的大小相同,从中任意&nbsp;摸一个球,摸到黄球的可能性是(&nbsp;&nbsp;&nbsp;&nbsp;),摸到白球的可能性是(&nbsp;&nbsp;&nbsp;&nbsp;),摸到绿球的可能性是(&nbsp;&nbsp;&nbsp;&nbsp;),摸到(&nbsp;&nbsp;&nbsp;&nbsp;)球的可能性最大。&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">二、选一选。</span><span style=" font-weight:bold; mso-font-kerning:; ">(每小题2分,共12</span><span style=" font-weight:bold; mso-font-kerning:; ">分</span><span style=" font-weight:bold; mso-font-kerning:; ">)</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1.</span><span style=" mso-font-kerning:; ">学校买回</span><span style=" mso-font-kerning:; ">4</span><span style=" mso-font-kerning:; ">个篮球和</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">个排球一共用</span><span style=" mso-font-kerning:; ">185</span><span style=" mso-font-kerning:; ">元,一个篮球比一个排球贵</span><span style=" mso-font-kerning:; ">8</span><span style=" mso-font-kerning:; ">元,篮球的单价是</span><span style=" mso-font-kerning:; ">(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style=" mso-font-kerning:; ">元。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、17&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、20&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、25&nbsp;</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2</span><span style=" mso-font-kerning:; ">.</span><span style=" mso-font-kerning:; ">钢笔每支12元,圆珠笔每支7元,共买了6支,用了52元,钢笔买了(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)支。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、2&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">.</span><span style=" mso-font-kerning:; ">两个大人带几个小孩去公园游玩,大人门票每人5元,小孩门票每人3元,买门票一共花了22元,则这两个大人带了(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)个小孩。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、5&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4.甲级铅笔5角钱一枝,乙级铅笔7角钱一枝,用7.5元可买这两种铅笔各(&nbsp;&nbsp;)枝。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、8&nbsp;,&nbsp;5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、9&nbsp;,&nbsp;7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、8&nbsp;,&nbsp;7</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">.</span><span style=" mso-font-kerning:; ">面粉每千克5元,大米每千克3元。王叔买面粉和大米共150千克,共付人民币650元,面粉买(&nbsp;&nbsp;&nbsp;)千克。</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、50&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、150&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">6.</span><span style=" mso-font-kerning:; ">幼儿园买来20张小桌和30张小凳共用去1860元,已知每张小桌比小凳贵8元,问小凳的价格</span><span style=" mso-font-kerning:; ">是()</span><span style=" mso-font-kerning:; ">?</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">A、34元&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、42元&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、56元</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">三、算一算。(共17分)</span><span style=" mso-font-kerning:; "></span><br><br><span style="font-family: 宋体; ">1、直接写得数对又快。(每小题1分,共8分)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">537-299=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.7×10%=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1÷2/3</span><span style="font-family: 宋体; ">×3/2</span><span style="font-family: 宋体; ">=</span><span style="font-family: 宋体; "> </span><span style="font-family: 宋体; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0.25×1.2×0.4</span><span style="font-family: 宋体; ">=</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">121×98≈&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8∶2/5</span><span style="font-family: 宋体; ">= &nbsp; &nbsp; &nbsp; 5/7-5/7</span><span style="font-family: 宋体;">×0</span><span style="font-family: 宋体; ">= &nbsp;</span><span style="font-family: 宋体; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="font-family: 宋体; ">0.9+99&nbsp;×0.9=</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">2、能简则简细又巧(每小题3分,共9分)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">2480-480÷40×25&nbsp;&nbsp;</span><span style="font-family: 宋体; "> </span><span style="font-family: 宋体; ">&nbsp;7/9</span><span style="font-family: 宋体;">÷11/5</span><span style="font-family: 宋体; font-size: 12pt; letter-spacing: 1pt;">+2/9</span><span style="font-family: 宋体;">×5/11 &nbsp; &nbsp;(2/3</span><span style="font-family: 宋体;">-2/5</span><span style="font-family: 宋体; font-size: 16px; letter-spacing: 1.33333337306976px;">+5/6)</span><span style="font-family: 宋体;">÷1/30</span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">四、列一列:(14分)</span><br><br> <table width="100%" border="1"><tbody><tr><td><br>3分球个数<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>2分球个数<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>总得分<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span style=" mso-font-kerning:; ">一次投篮比赛,小明投2分球和3分球共8个,2分球和3分球各几个,有几种可能,填入下表。</span><span style=" mso-font-kerning:; ">&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" font-weight:bold; mso-font-kerning:; ">五、做一做。(共41分)</span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、商店里蓝球的单价是42元、足球的单价是35,李老师为学校买篮球和足球共6个花了231元,篮球和足球各买了多少个?</span><span style=" font-weight:bold; mso-font-kerning:; ">(用自己喜欢的方法解答</span><span style=" font-weight:bold; mso-font-kerning:; ">,5分</span><span style=" font-weight:bold; mso-font-kerning:; ">)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">2、</span><span style=" mso-font-kerning:; ">12张乒乓球台上共有34人在打球,问:正在进行单打和双打的台子各有几张?</span><span style=" mso-font-kerning:; ">(5分)</span><br><br><span style=" mso-font-kerning:; ">3、鸡兔同笼不知数,三十六头笼中露。数清脚共五十双,各有多少鸡和兔?</span><span style=" mso-font-kerning:; ">5分)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">4、</span><span style=" mso-font-kerning:; ">体育课上,跳绳的每</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">人一组,扔沙包的每</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">人一组,共有</span><span style=" mso-font-kerning:; ">42</span><span style=" mso-font-kerning:; ">名学生分成10组参加活动。参加跳绳和扔沙包的各有多少人?</span><span style=" mso-font-kerning:; ">(用列方程的方法解答,5分)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、</span><span style=" mso-font-kerning:; ">数学竞赛共20道选择题,答对1题得5分,答错或不答倒扣1分。小王同学在竞赛中得了82分,他答对</span><span style=" mso-font-kerning:; ">多少</span><span style=" mso-font-kerning:; ">道题</span><span style=" mso-font-kerning:; ">?(</span><span style=" mso-font-kerning:; ">5分</span><span style=" mso-font-kerning:; ">)</span><br><br><span style=" mso-font-kerning:; ">6、小强有三角形、长方形的卡片共40张,这些卡片共有145个角,两种卡片各有多少张?</span><span style=" mso-font-kerning:; ">(</span><span style=" mso-font-kerning:; ">5分</span><span style=" mso-font-kerning:; ">)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">7、现有大小油桶50个,每个大桶可装油4千克,每个小桶可装油2千克,大桶比小桶共多装油20千克,问大小桶各多少个?&nbsp;&nbsp;&nbsp;</span><span style=" font-weight:bold; mso-font-kerning:; ">(用假设法解答,</span><span style=" font-weight:bold; mso-font-kerning:; ">5分</span><span style=" font-weight:bold; mso-font-kerning:; ">)</span><br><br><span style=" mso-font-kerning:; ">8、搬运</span><span style=" mso-font-kerning:; ">1000</span><span style=" mso-font-kerning:; ">只玻璃瓶</span><span style=" mso-font-kerning:; ">,</span><span style=" mso-font-kerning:; ">规定搬一只可得搬运费</span><span style=" mso-font-kerning:; ">3</span><span style=" mso-font-kerning:; ">角</span><span style=" mso-font-kerning:; ">,</span><span style=" mso-font-kerning:; ">但打碎一只要赔</span><span style=" mso-font-kerning:; ">5</span><span style=" mso-font-kerning:; ">角</span><span style=" mso-font-kerning:; ">.</span><span style=" mso-font-kerning:; ">如果运完以后共得到运费</span><span style=" mso-font-kerning:; ">260</span><span style=" mso-font-kerning:; ">元,问搬运中打碎了多少只玻璃瓶?(6分)</span><span style=" font-weight:bold; mso-font-kerning:; ">  </span><span style=" font-weight:bold; mso-font-kerning:; "></span><br><br><br><div style="text-align: center;"><span style="font-weight: bold;"><font color="#38761d">人教版小学数学六年级上册单元检测题</font></span></div><div style="text-align: center;"><font color="#38761d"><br></font></div><span style=" font-weight:bold; mso-font-kerning:; "><div style="text-align: center;"><font color="#38761d">参考答案及评分标准</font></div></span><br><strong><span style=" mso-font-kerning:; ">一.填一填。(每小题2分,共16</span><span style=" mso-font-kerning:; ">分</span><span style=" mso-font-kerning:; ">)</span></strong><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、(23)&nbsp;&nbsp;&nbsp;(12) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2、(11)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">3、(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4、(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">5、(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6、(6)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">7、(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8、(1/10</span><span style=" mso-font-kerning:; ">)&nbsp;&nbsp;(1/5</span><span style=" mso-font-kerning:; ">)&nbsp;(3/10</span><span style=" mso-font-kerning:; ">)&nbsp;(红球)</span><span style=" mso-font-kerning:; "></span><br><br><strong><span style=" mso-font-kerning:; ">二、选一选。</span><span style=" mso-font-kerning:; ">(每小题2分,共12</span><span style=" mso-font-kerning:; ">分</span><span style=" mso-font-kerning:; ">)</span></strong><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; ">1、C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2、C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3、B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4、A&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5、A&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6、A&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" mso-font-kerning:; "></span><br><br><span style=" mso-font-kerning:; "><strong>三、算一算。(共17分)</strong></span><span style=" mso-font-kerning:; "></span><br><br><span style="font-family: 宋体; ">1、直接写得数对又快。(每小题1分,共8分)</span><span style="font-family: 宋体; "></span><br><br><span style="font-family: 宋体; ">238&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0.27 &nbsp; &nbsp; &nbsp;9/4</span><span style="font-family: 宋体; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12100&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20 &nbsp; &nbsp; &nbsp; &nbsp;5/7</span><span style="font-family: 宋体; ">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;90</span><span style="font-family: 宋体; "></span><br><br><span style=" z-index:-1; left:0px; "></span><span style="font-family: 宋体; ">2、能简则简细又巧(每小题3分,共9分)</span><span style="font-family: 宋体; "></span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0108/201518115116.png?m=0.6093360355589539"><br><br><span style=" mso-font-kerning:; "><strong>四、画一画(共14分)</strong></span><div><br> <table width="100%" border="1"><tbody><tr><td><br>3分球个数<br></td><td><br>1<br></td><td><br>2<br></td><td><br>3<br></td><td><br>4<br></td><td><br>5<br></td><td><br>6<br></td><td><br>7<br></td></tr><tr><td><br>2分球个数<br></td><td><br>7<br></td><td><br>6<br></td><td><br>5<br></td><td><br>4<br></td><td><br>3<br></td><td><br>2<br></td><td><br>4<br></td></tr><tr><td><br>总得分<br></td><td><br>17<br></td><td><br>18<br></td><td><br>19<br></td><td><br>20<br></td><td><br>21<br></td><td><br>22<br></td><td><br>23<br></td></tr></tbody></table> <br><strong>五、做一做。(共41分)</strong><br><br><strong>1、</strong><strong>假设全是篮球</strong>:42×6=252(元)&nbsp;&nbsp;&nbsp;&nbsp;252-231=21(元)&nbsp;&nbsp;&nbsp;<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">2.5分</span><br><br>42—35=7(个)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">4.5分</span><br><br>足球:21÷7=3(个)&nbsp;篮球:&nbsp;&nbsp;6-3=3(个)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">5分</span><br><br><strong><span style=" mso-font-kerning:; ">2、解设单打有</span>x张</strong>,则双打有(12—x)张&nbsp;&nbsp;&nbsp;<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">1分</span></div><div><br><span style=" mso-font-kerning:; ">2</span>x+4(12—x)=34<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">3.分</span>男:x=7(张)<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">4分</span></div><div><br><span style="font-family: 宋体; ">12—7=5(张)</span><span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">5分</span><span style="font-family: 宋体; "></span><br><br><strong><span style=" mso-font-kerning:; ">3、解设兔</span><span style=" mso-font-kerning:; ">有</span></strong><strong>只</strong>,则鸡有(36—x)只<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">1分</span></div><div><br><span style=" mso-font-kerning:; ">4</span>x+2(36—x)=50<span style="font-family: 宋体;">×2</span><span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">4.5分</span>=14<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">5分</span></div><div><br><strong><span style=" mso-font-kerning:; ">4、解设参加</span><span style=" mso-font-kerning:; ">跳绳的有</span>x组</strong>,则扔沙包的有(10—x)组<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">1分</span></div><div><br><span style=" mso-font-kerning:; ">5</span>x+3(10—x)=42<span style="font-family: ‘‘;">………………</span><span style="font-family: 宋体;">3.5分</span></div><div><br><span style=" mso-font-kerning:; ">5</span>x+30—3x=42</div><div><br>x=6&nbsp;&nbsp;&nbsp;6x×5=30(人)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;42-30=12(人)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">5分</span><br><br><strong>5、假设全答对:</strong>5×20=100(分)&nbsp;&nbsp;&nbsp;&nbsp;100-82=18(分)&nbsp;&nbsp;&nbsp;<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">2.5分</span><br><br>5+1=6(分)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">4.5分</span><br><br>答错:18÷6=3(题)&nbsp;答对:&nbsp;&nbsp;20-3=17&nbsp;(题)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">5分</span><br><br><strong>6、假设全是正方形:</strong>40×4=160(个)&nbsp;&nbsp;&nbsp;&nbsp;160-145=15(个)&nbsp;&nbsp;&nbsp;<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">2.5分</span><br><br>4-3=1(个)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">4.5分</span><br><br>三角形:15÷1=15(个)<span style="font-family: ‘‘; ">………</span><span style="font-family: 宋体; ">5分;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>正方形:40—15=25(个)<br><br><strong>7、假设全是大桶:</strong>50×4—20=180(千克)&nbsp;&nbsp;&nbsp;4+2=6(千克)&nbsp;&nbsp;&nbsp;<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">4.5分</span><br><br>小桶:180÷6=30(个)&nbsp;&nbsp;&nbsp;&nbsp;大桶:&nbsp;&nbsp;50-30=20(个)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">5分</span><br><br><strong><span style=" mso-font-kerning:; ">8、</span><span style=" mso-font-kerning:; ">假设全部没有打</span><span style=" mso-font-kerning:; ">碎</span></strong><strong>:</strong>1000×0.3=300(元)&nbsp;&nbsp;300-260=40(元)=400(角)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3+5=8(角)打碎:400÷8=50(个)<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">5.5分</span><br><br>答:搬运中打碎了50只玻璃瓶。<span style="font-family: ‘‘; ">………………</span><span style="font-family: 宋体; ">6</span><span style="font-family: 宋体; ">分</span><br><br></div>