2015年小学五年级数学上册第一单元小数乘法测试题

<div style="text-align: center;"><font color="#ff0000"><span style="font-weight: bold;">2015年小学</span><span style="font-weight: bold;">五年级数学上册第一单元小数乘法测试卷</span></font></div><br><div style="text-align: center;">(试卷说明:完卷时间100分钟,满分100分命题人:靳君平)</div><div><span></span><br> <table width="100%" border="1"><tbody><tr><td><br>题&nbsp;号<br></td><td><br>一<br></td><td><br>二<br></td><td><br>三<br></td><td><br>四<br></td><td><br>五<br></td><td><br>总&nbsp;分<br></td></tr><tr><td><br>得&nbsp;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></tr></tbody></table> <br><span style=" font-weight:bold; ">一、</span><span style=" font-weight:bold; ">神机妙算我能行!(共35分)</span><span style=" font-weight:bold; "></span><br><br><span>1、口算(5分)</span><br><br><span>0.2×0.4=&nbsp;&nbsp;&nbsp;&nbsp;8.2+1.8=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;100-35.22=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.5×0.4=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0.8×50=</span><br><br><span>2.4×5=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0.9-0.52=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.99×1=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0×3.52=&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;12.5×8=</span><br><br><span>2、列竖式计算(12分)</span><br><br><span>42×5.4 &nbsp; &nbsp; &nbsp; &nbsp; 5.6×1.8 &nbsp; &nbsp; &nbsp; &nbsp;0.25×0.046</span><br><br><span>(保留两位小数)&nbsp;</span><br><br><span>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;验</span><br><br><span>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;算</span><br><br><span>&nbsp;</span><br><span>3500×0.96 &nbsp; &nbsp; &nbsp;1.08×25 &nbsp; &nbsp; &nbsp; 0.12×0.44</span><br><span>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (保留到十分位)</span><br><br><span>3、怎么简便就怎么算.(18分)</span><span><br></span><span>&nbsp; 0.125×32&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0.78×101&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.26×5.7-3.26×0.7</span><br><span>&nbsp;</span><br><br><span>56.5×99+56.5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.25×213×0.8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;19.625-(4.716+9.625)</span><br><span style=" font-weight:bold; ">&nbsp;</span><br><br><span style=" font-weight:bold; ">二、</span><span style=" font-weight:bold; ">填空。(共28分)</span><span style=" font-weight:bold; "></span><br><br><span>1、根据321×23=7383,很快写出下面各题的积。</span><br><br><span>3.21×23= &nbsp; &nbsp; &nbsp; &nbsp; 3.21×2.3= &nbsp; &nbsp; &nbsp; &nbsp;32.1×2.3=</span><br><br><span>32.1×0.23= &nbsp; &nbsp; &nbsp; 3.21×0.23= &nbsp; &nbsp; &nbsp; &nbsp;321×0.023=</span><br><br><span>2、在下面的圆圈里填上“>”、“<”或“=”。</span><br><br><span>23.2×0.9&nbsp;○&nbsp;0.9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;15.6×3.2&nbsp;○&nbsp;3.2×15.6</span><br><br><span>1×0.36&nbsp;○&nbsp;1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.6×5.2&nbsp;○&nbsp;52×0.36&nbsp;&nbsp;&nbsp;</span><br><br><span>3、5个1.6相加,用加法表示是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;),用乘法表示是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;),</span><span>结果是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>4、0.35×2.73的积有(&nbsp;&nbsp;&nbsp;)位小数,a×2.3的积是三位小数,那么a至少是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)</span><span>位小数。</span><br><br><span>5、0.27扩大到它的100倍是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。325缩小到它的1/100</span><span>是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><br><br><span>6、填空。</span></div><div><br> <table width="100%" border="1"><tbody><tr><td><br>&nbsp;<br></td><td><br>31.696<br></td><td><br>18.945<br></td><td><br>30.463<br></td></tr><tr><td><br>保留整数<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>保留一位小数<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr><tr><td><br>精确到百分位<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td><td><br>&nbsp;<br></td></tr></tbody></table> <br><span>7、一块玻璃长是1.2米,宽是0.85米,这块玻璃的面积是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)平方米,如果每</span><br><br><span>平方米的售价是18.5元,这块玻璃是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)元。</span><br><br><span style=" font-weight:bold; ">三、判断题(共5分)</span><br><br><span>1、0.36时=36分。 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; (  &nbsp; &nbsp;)</span><span></span><br><br><span>2、一个数的1.65倍一定大于这个数。( &nbsp; &nbsp; &nbsp;)</span><span><br></span><span><br></span></div><div><span>3、两个小数相乘的积一定大于1。 &nbsp; ( &nbsp; &nbsp; &nbsp;)&nbsp;</span><span></span><br><br><span>4、“1.6×0.35×5=0.35×(1.6×5)”应用了乘法的交换律和乘法的结合律。 </span><span>&nbsp;( &nbsp; &nbsp;)</span><span></span><br><br><span>5、一个因数扩大10倍,另一个因数缩小到它的1/10</span><span>,积不变。(    )</span><br><br><span style="font-weight: bold; ">四、</span><span style="font-weight: bold; ">文字题。(共6分)</span><span style="font-weight: bold; "></span><br><br><span>1、1.25乘4.2减5,差是多少?&nbsp;&nbsp;&nbsp;&nbsp;</span><span></span><br><br><span>2、比4.7的1.5倍多3.05的数是多少?</span><br><br><span>3、3.5与4.9的积是多少?(精确到个位)</span><span></span><br><span><br></span></div><div><span>4、25.26的3.6倍是多少?(保留两位小数)</span><br><br><span style=" font-weight:bold; ">五、</span><span style=" font-weight:bold; ">我能解答生活问题。(共26分)(第4题6分)</span><span style=" font-weight:bold; "></span><br><br><span>1、五(3)班的黑板长3.2米,宽1.5米,同学们在黑板的一周围上花边,花边长多少米?</span><br><br><span>2、湘江花园的一幢大楼有16层,每层高2.96米,这幢大校高约多少米?(得数保留整数)</span><br><br><span>3、小玲和爷爷、奶奶、爸爸、妈妈一起去公园游玩,只见入门处写着:</span><span>请你帮她算一算,买门票一共要几元?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2015/0923/2015923185258.png?m=0.08134192461147904"></div><div><br><span>4、小兰家每天平均用电2.3度,八月份她家共用电多少度?如果每度电0.79元,她家八月份一共应缴纳电费多少元?(得数保留一位小数)</span><br><br><span>5、学校食堂的面积是100平方米。用边长0.8米的正方形砖铺地,150块够吗?</span><br><br></div>