2008年广东省初中毕业生学业考试 数学模拟测试卷(一)答案
推荐回答(1个)
小六毕业数学模拟测试卷
(答题时间:100分钟)
一. 基本概念(32分)
1. 填空(22分,每题2分)
(1)一个数由15个万、9个千、4个十和7个一组成,这个数写作( )。改写成以万为单位的数是( ),四舍五入到万位约是( )。
(2)1300平方厘米 =( )平方米 5米3厘米=( )米
(3)把 按从小到大的顺序排列( )。
(4)甲、乙两地相距120千米,把它画在比例尺是1:2000000的地图上,图上甲、乙两地间的距离是( )厘米。
(5)一个圆锥体,底面周长是6.28分米,高是2分米,它的体积是( )立方分米。
(6)一个正方体切成两个长方体后,表面积增加了10平方厘米,这个正方体原来的表面积是( )平方厘米。
(7)甲数的27 等于乙数的35 ,则甲数与乙数的比是( )
(8)三个连续偶数的和是54,这三个偶数的最大公约数是( ),最小公倍数是( )。
(9)甲班人数调 到乙班后,两班人数相等。原来甲班人数与乙班人数的最简整数比是( )。
(10)三年期国债的年利率是1.98%,某人购买了50000元,到期时共得本息( )元。
(11)甲、乙两数的比是3:4,乙数减去甲数得10,乙数是( )
2. 选择正确答案的序号填在( )里。(10分,每题2分)
(1)如果 ,那么( )
①a一定是b的倍数 ②a可能是b的倍数 ③b一定能整除a
(2)一个圆柱形水管,内直径是20厘米,水在管内的流速是每秒4分米,每秒流过的水是( )升。
①12.56 ②50.24 ③125.6 ④25.12
(3)完成一项任务,原计划用12天,实际共用了8天,工作效率提高了( )。
①50% ②33.3% ③66.7%
(4)一个三角形三个内角度数比是2:3:5,这个三角形是( )
①钝角三角形 ②锐角三角形 ③直角三角形
(5)一桶油重10千克,用去10%以后,又倒进10%,这时桶里有油( )千克。
①10 ②9 ③9.9
二. 基本计算(28分,每题4分)
1. 脱式计算(能简算的要简算)
(1) (2)
(3) (4)7.8÷〔3.2×(1-58 )+3.6〕
(5) (6)12×(14 +56 -24 )
2. 求下图中钢管的体积。(单位:米)
三. 解决问题(40分)
1. 修一条公路,已修和未修的长度的比是1:3,再修300米, 已修的长度是未修的12 .这条路有多长?(7分)
2. 一只羽毛球拍的价钱是一个羽毛球价钱的18倍 ,小芳买了一只羽毛球拍和二个羽毛球一共花了60元.一个羽毛球的价格是多少元?(7分)
3.一项工程,甲独做40天完成, 乙独做要60天完成,现两人合作,中间因甲病休几天,所以27天才完成任务,问甲休息了几天?(7分)
4. 一个圆锥形粮囤,底面直径6米,高4米。每立方米小麦约重700千克。这个粮囤大约能装小麦多少吨?(得数保留整数)(6分)
5. 甲、乙两袋米质量比是2:3,如果从乙袋里取出10千克米放入甲袋里,则两袋米的质量相等。乙袋原有小麦多少千克?(6分)
6. 甲、乙两港相距468千米,甲、乙两车同时从两地出发相向而行,4.5小时相遇,已知甲与乙的速度的比是7:6,求乙每小时行多少千米?(7分)
附加题:
1、小明读一本课外书,第一天读了全书的 ,第二天读了余下的 ,第三天读了再余下的 ,最后剩下24页没有读。这本书共有多少页?(20分)
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