<div><div style="text-align: center;"><span style="font-weight: bold;"><font color="#ff0000">第五单元(小数除法)测试题(北师大版)</font></span></div><div style="text-align: center;"><br></div><span><div style="text-align: center;">考试时间:60分钟 满分:100分</div></span><br><span><strong>一、填空.(20分,1、2、7题各3分,余题每空1分)</strong></span><br><br><span> 1. 4.38÷0.7=( )÷7 0.196÷0.37=( )÷37 ( )×13=59.8</span><br><br><span> ( )÷2.4=37.2÷24 4.32÷( )=4320÷3 54.4÷( )=16</span><br><br><span> 2. </span><span>的循环节是( ),把它保留三位小数约是( ),保留一位小数约是( ).</span><br><br><span> 3. 两个数相除的商是0.39,如果被除数扩大10倍,除数也扩大10倍,那么商是( ).</span><br><br><span> 4. 把</span><span>按从小到大的顺序排列是:( )○( )○( )○( )○( )○( ).</span><br><br><span> 5. 24.84里面有( )个0.4,有50个( ).</span><br><br><span> 6. 1美元兑换6.827元人民币,1000美元兑换人民币( )元,34135元人民币可兑换( )美元.</span><br><br><span> 7. 在○里填上“>、<或=”.</span><br><br><span> 0.1×0.1○0.1÷0.1 3.2÷2○3.2×2 </span><br><br><span> 0.888÷0.1○88.8×0.1 4÷2.5○4×2.5 2.6÷0.4○3.6</span><br><br><span> 8.一辆汽车2小时15分行驶了216千米,这辆汽车的速度是( )千米/时.</span><br><br><span> 9. 10.1÷11商的小数部分第100位上的数字是( ).</span><br><br><span> 10. 一个两位小数保留一位小数后是1.5,这个两位小数最大是( ),最小是( ).</span><br><br><span><br></span></div><div><strong><span>二、判断.(下面各题对的在括号里打“√”,错的打“×”)(5分)</span><br></strong><br><span> 1.去掉小数点后面的零,小数的大小不变.( )</span><br><br><span> 2. 0.6666是循环小数.( )</span><br><br><span> 3. 当被除数小于除数时,商一定小于1.(被除数和除数都不是0)( )</span><br><br><span> 4. 近似数4.2与4.20的大小相等,精确的程度不相同,4.20比4.2更精确些.( )</span><br><br><span> 5. 一个大于0的数除以一个比1小且大于0的数,商一定大于被除数.( )</span><br><br><span><br></span></div><div><span><strong>三、选择.(把表示正确答案的字母填在括号里).(4分)</strong></span><br><br><span> 1.下面算式的商是循环小数的算式是( ).</span><br><br><span> A.8÷6 B.4÷8 C.2.5÷4 D.3.3÷5</span><br><br><span> 2.计算小数除法,如果要求得数精确到百分位,商应除到( ).</span><br><br><span> A.十分位 B.百分位 C.千分位 D.个位</span><br><br><span> 3.被除数不变,要使商扩大到原来的10倍,除数应( ).</span><br><br><span> A.扩大到原来的10倍 B.保持不变</span><br><br><span> C.缩小到原来的1/10</span><span> D.无法确定</span><br><br><span> 4.两数相除,商与被除数相比( ).</span><br><br><span> A.商一定小于或等于除数 B.商一定大于或等于被除数</span><br><br><span> C.二者的大小无法确定 </span><br><br><span><br></span></div><div><span><strong>四、直接写得数.(6分)</strong></span><br><br><span> 8÷0.5= 18÷0.9= 1÷0.4= 0.84÷7=</span><br><br><span> 0.7×1.4= 32÷0.4= 0÷0.31= 0.5÷0.01=</span><br><br><span> 5÷0.25= 0.3÷0.03= 2.4÷30= 0.3÷0.15÷2=</span><br><br><span><br></span></div><div><span><strong>五、用竖式计算,商是循环小数的用简便写法表示出来.(6分)</strong></span><br><br><span> 15.2÷4 25.84÷1.7 47.04÷1.4</span><br><br><span> 0.196÷0.56 5.7÷9 38.2÷2.7</span><br><br><span><br></span></div><div><span><strong>六、计算并验算.(4分)</strong></span><br><br><span> 4.704÷5.6 1.23×0.4</span><br><br><span><br></span></div><div><span><strong>七、计算下列各题.(8分)</strong></span><br><br><span> 9.1÷0.13÷2.5 (74.8-20.2)÷91+0.4</span><br><br><span> 0.175÷0.25×4 7.44÷[(54.7-17.5)×0.5]</span><br><br><span><br></span></div><div><span><strong>八、用简便方法计算(6分)</strong></span><br><br><span> 4.9÷0.125 3.6÷0.18÷20 0.8÷0.32</span><br><br><span><br></span></div><div><span><strong>九、填空.(6分)</strong></span><br><br><span> 1.用四舍五入法取近似值,并填入下表</span><br><table><tbody><tr><td><br><span> </span><br></td><td><br><strong><span>保留整数</span><br></strong></td><td><strong><br><span>保留一位小数</span><br></strong></td><td><strong><br><span>保留两位小数</span></strong><br></td></tr><tr><td style=" border-top:none; ; "><br><span>38.2×0.13</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td></tr><tr><td style=" border-top:none; ; "><br><span>5.63÷6.1</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td></tr></tbody></table><br><span> 2.下面是李叔叔家四、五月份水电的收费表,请你把表填完整.</span><br><table><tbody><tr><td><br><span> </span><br></td><td colspan="4"><br><strong><span>水</span><br></strong></td><td colspan="4"><strong><br><span>电</span></strong><br></td></tr><tr><td style=" border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><strong><span>上月指针</span><br></strong></td><td style=" padding: border-top:none; ; "><strong><br><span>本月指针</span><br></strong></td><td><strong><br><span>用量</span><br></strong></td><td><strong><br><span>金额(元)</span><br></strong></td><td><strong><br><span>上月指针</span><br></strong></td><td><strong><br><span>本月指针</span><br></strong></td><td><strong><br><span>用量</span><br></strong></td><td><strong><br><span>金额(元)</span></strong><br></td></tr><tr><td style=" border-top:none; ; "><br><span>四月</span><br></td><td style=" padding: border-top:none; ; "><br><span>488</span><br></td><td style=" padding: border-top:none; ; "><br><span>495</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span>17.78</span><br></td><td style=" padding: border-top:none; ; "><br><span>4929</span><br></td><td style=" padding: border-top:none; ; "><br><span>5026</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span>43.65</span><br></td></tr><tr><td style=" border-top:none; ; "><br><span>五月</span><br></td><td style=" padding: border-top:none; ; "><br><span>495</span><br></td><td style=" padding: border-top:none; ; "><br><span>505</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span>5026</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td><td style=" padding: border-top:none; ; "><br><span>80</span><br></td><td style=" padding: border-top:none; ; "><br><span> </span><br></td></tr></tbody></table><br><span><br></span></div><div><span><strong>十、解答下列各题.(35分)</strong></span><br><br><span> 1.香港朋友小敏和父母一同来上海参加世园会,有一盆漂亮的花卉卖44元钱,小敏想用零用钱把它买回去,送给外婆.她手里有48元港币,够吗?如果够;还剩多少钱?如果不够,还要向父母要多少港币?(1元港币兑换人民币0.88元)</span><br><br><span> 2.“靓仔”童鞋店运动鞋进货情况如下表所示:</span><br><br><span> (1)哪种鞋进价便宜?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0611/2013611185112.png?m=0.8495792960748076"><br><br><span> (2)若商店按下面的价格售完这些运动鞋,一共可赚多少钱?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0611/2013611185131.png?m=0.07937372615560889"><br><br><span> 3.光明小学四(1)班的同学分成两队采集树种,哪个小队平均每人采集的树种多?多多少千克?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0611/2013611185153.png?m=0.38862004480324686"><br><br><span> 4.你知道有多少名学生吗?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2013/0611/2013611185216.png?m=0.4776350832544267"><br><br><span> 5.笑笑家买了一栋新楼房,客厅长5米,宽4.5米,爸爸准备把客厅铺上地砖,爸爸在买方砖时看中一种方砖边长0.8米.请你帮助爸爸算一算,买这种方砖需要买多少块?(整块数)</span><br><br><span> 6.在一个停车场停车一次至少交费0.5元,如果停车超过1小时,每多停0.5小时要多交0.5元.一辆汽车在离开停车场时交了5.5元,这辆汽车停了几时?</span><br><br><span><br></span></div><div><span><strong>附加题:(外加10分)</strong></span><br><br><span> 1.在□里填上合适的数.3.□□×□.17≈6.84 3.□□÷2.17≈1.45</span><br><br><span> 2.任何一个除法算式,除得的商有两种情况:一是除尽,二是除不尽,除不尽的商一定是循环小数,你认为这种说法对吗?举出几个例子试一试.</span><br><br></div>
四年级下