2013年小升初数学试卷及答案

<div style="text-align: center;"><strong><font color="#ff0000">2013年小升初数学试题</font></strong></div><br><span><strong>一、填空。</strong></span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、十亿五千九百四十万写作(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;),四舍五入到“亿”位约是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">2、10个0.1是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;),8.5里有(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)个十分之一。</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;">3、近似数3.0的取值范围是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">4、<img src="//www.szxuexiao.com/uploadimages/2014/0220/201422016828.jpg?m=0.5585368413012475"></span><br><br><span style=" font-family: 宋体;">5、被差数+减数+差役20,被减数是(    )。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">6、从4里连续减(     )个0.06结果为1。</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;">7、一件衣服单价100元,先降低10%,再提价10%,现在是(&nbsp;&nbsp;&nbsp;&nbsp; )元。</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;">8、一个分数约分后是 5/7,原分数分子分母和是72,原分数是(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">9、<img src="//www.szxuexiao.com/uploadimages/2014/0220/201422016923.jpg?m=0.7234741635620594"></span><br><br><span style=" font-family: 宋体;">10、一根绳子长75米,平均截成5段,2段是全长的(&nbsp;&nbsp;&nbsp;&nbsp;),2段长(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)米。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">11、把4个边长是6分米的正方形拼成长方形,这个长方形的周长(   ),面积(  )。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">12、甲比乙多20%,甲与乙的比是(    )。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">13、圆柱和圆锥底面积相等,体积也相等。圆柱的高是15厘米,圆锥的高是(    )。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;"><strong>二、判断题(5分)</strong></span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、两个面积相等的长方形,周长也相等。(   )</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">2、一个水桶的体积是50立方分米,可以说这个水桶的容积是50升。(   )</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">3、任何一个圆,周长与直径的比值都不变。(   )</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;">4、锐角三角形中,如果一个角是30°,其余两个角可以是55°、95°。(   )</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">5、A的1/6与B的1/3相等,(A≠0),那么B是甲的50%。(   )</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;"><strong>三、选择(10分)</strong></span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、下列式子中(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)是方程。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">A、4+</span><span style=" font-family: 宋体;">χ&gt;90&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style=" font-family: 宋体;">B、χ</span><span style=" font-family: 宋体;">–</span><span style=" font-family: 宋体;">5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、χ=0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、3+2=5</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">2、(&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)不能分割成两个完全一样的三角形。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">A、平行四边形&nbsp;&nbsp;&nbsp;B、等腰梯形&nbsp;&nbsp;&nbsp;&nbsp;C、长方形&nbsp;&nbsp;&nbsp;&nbsp;D、正方形</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">3、一个圆柱侧面展开后是一个正方形,这个圆柱的底面半径与高的比是(&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">A、1:π&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、1:2π&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、π:1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、2π:1</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">4、盒子里有8个黄球,5个红球,至少摸(&nbsp;&nbsp;&nbsp;&nbsp;)次一定会摸到红球。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">A、8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、6</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">5、从甲堆货物中取出&nbsp;1/9 给乙堆,这时两堆货物质量相等,原来甲、乙两堆的质量比是(&nbsp;&nbsp;&nbsp;&nbsp;)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">A、7:9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B、9:8&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C、9:7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;D、9:6</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;"><strong>四、计算(23分)</strong></span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、解方程式或比例(8分)</span><span style=" font-family: 宋体;"></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161140.jpg?m=0.02880190289579332"><br><br><span style=" font-family: 宋体;">2、用适当的方法计算。(9分)</span><span style=" font-family: 宋体;"></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161231.jpg?m=0.6085801278240979"><br><br><span style=" font-family: 宋体;">3、列式计算。(6分)</span><br><br><span style=" font-family: 宋体;">(1)&nbsp;3.5比一个数的&nbsp;2/3 少7,求这个数。</span><br><br><span style=" font-family: 宋体;">(2)&nbsp;3/4 除以 1/2 与&nbsp;5/8 的和,所得的商再扩大3倍,得多少?</span><span style=" font-family: 宋体;"></span><br><br><span style="font-family: 宋体;"><strong>五、求阴影部分周长与面积(单位:米)(6分)</strong></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161335.jpg?m=0.9987173231784254"><br><br><span style=" font-family: 宋体;"><strong>六、解决问题(33分,1~3题,每题5分,4~6题,每题6分)</strong></span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、一项工程,甲独做10天完成,乙独做12天完成,现两人合做,完成后共得工资2200元,如果按完成工程量分配工资,甲、乙各分得多少元?</span><br><br><span style=" font-family: 宋体;">2、大厅里有8根圆柱形木桩要刷油漆,木桩底面周长2.5米,高4.2米,1千克的油漆可以漆6平方米,那么刷这些木桩要多少油漆?</span><span style=" font-family: 宋体;"></span><br><br><span style="font-family: 宋体;">3、张爷爷用篱笆围成如图养鸡场,一边利用房屋墙壁,篱笆长35米,求养鸡场面积?</span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161424.jpg?m=0.03367966320365667"><br><br><span style=" font-family: 宋体;">4、小刚骑车上坡速度是每小时5千米,原路返回下坡速度是10千米,求小刚上、下坡的平均速度。</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">5、用72块方砖铺了18平方米,那么铺24平方米,要这样的方砖几块?(用比例解)</span><br><br><span style=" font-family: 宋体;">6、甲、乙、丙三人共同加工一批零件,甲加工零件与乙、丙两人加工零件总数的比是1:2,甲、丙两人共加工135个,乙加工这批零件的1/4,这批零件共有几个?</span><br><div><span style=" font-family: 宋体;"><br></span></div><div></div>{$setpage}<div><span style=" font-family: 宋体;"><br></span></div><div><br> <div style="text-align: center;"><font color="#38761d">2013年小升初数学试卷答案</font></div><br><span style=" font-family: 宋体;">一、填空:</span><span style=" font-family: 宋体;"></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161549.jpg?m=0.9117711705621332"><br><br><span style=" font-family: 宋体;">二、判断:</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、×&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2、×&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3、√&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4、×&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5、√</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">三、选择:</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2、B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3、B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4、C&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5、C</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;">四、计算</span><span style=" font-family: 宋体;"></span><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161630.jpg?m=0.9556620337534696"><br><br><img src="//www.szxuexiao.com/uploadimages/2014/0220/2014220161729.jpg?m=0.13113352726213634"><br><br><span style=" font-family: 宋体;">六、解决问题:</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">1、甲、乙效率比6:5&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2、2.5×4.2×8÷6………(3分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">甲:2200×6/11=1200(元)&nbsp;………(2.5分)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=10.5×8÷6…………(1分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">乙:2200×5/11=1000(元)&nbsp;………(2.5分)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=14千克&nbsp;&nbsp;&nbsp;…………(1分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;"><o:p>&nbsp;</o:p></span><br><br><span style=" font-family: 宋体;">3、(35─10)×10÷2………(3分)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4、假设总路程是10千米</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;=25×10÷2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10÷5=2小时&nbsp;</span><span style=" font-family: 宋体;">………(2分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;=125(平方米)&nbsp;&nbsp;</span><span style=" font-family: 宋体;">&nbsp;………(2分)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10÷10=1小时………(2分)</span><span style=" font-family: ‘Times New Roman‘;"></span><br><br><span style=" font-family: ‘Times New Roman‘;"> </span><span style=" font-family: 宋体;">(10+10)÷3=&nbsp;&nbsp;20/3 千米</span><span style=" font-family: 宋体;">……(2分)</span><span style=" font-family: ‘Times New Roman‘;"></span><br><br><span style=" font-family: 宋体;">5、设:要这样的方砖</span><span style=" font-family: 宋体;">χ块…………(1分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;72:18=χ:24&nbsp;&nbsp;&nbsp;…………(4分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;18χ=72×24</span><span style=" font-family: 宋体;"></span><br><br><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;χ=96&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;…………(1分)</span><span style=" font-family: 宋体;"></span><br><br><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" z-index:1; left:0px; "></span><span style=" font-family: 宋体;"><o:p>&nbsp;</o:p></span><br><br><span style=" font-family: 宋体;">6、&nbsp;2/3 &nbsp;</span><span style=" font-family: 宋体;">─&nbsp;1/4 &nbsp;=&nbsp;5/12 &nbsp; &nbsp; …………(1分)</span><br><br><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;135÷(&nbsp;1/3 +&nbsp;5/12 )&nbsp;&nbsp;</span><span style=" font-family: 宋体;">…………(3分)</span><br><br><span style=" font-family: 宋体;">&nbsp;&nbsp;&nbsp;=18(个)</span><span style=" font-family: 宋体;">&nbsp;………………………………(2分)&nbsp;</span><span style=" font-family: 宋体;"></span><br><br></div>