2022年初一数学上册第一章有理数测试卷教案教学设计说课稿 .pdf
学习好资料欢迎下载第一章有理数测试卷一、选择题。1.下列说法正确的个数是()一个有理数不是整数就是分数一个有理数不是正数就是负数一个整数不是正的，就是负的一个分数不是正的，就是负的A 1 B 2 C 3 D 4 2.a,b是有理数，它们在数轴上的对应点的位置如下图所示：把 a,-a,b,-b按照从小到大的顺序排列()A -b-aab B -a-bab C -ba-ab D -bb-aa 3.下列说法正确的是()0 是绝对值最小的有理数相反数大于本身的数是负数数轴上原点两侧的数互为相反数两个数比较，绝对值大的反而小A B C D 4.下列运算正确的是 ()A.5252()17777B 725=95=45 C.54331345D 2(3)95.若 a+b0,ab0,则()A a0,b0 B a0,b0 C a,b两数一正一负，且正数的绝对值大于负数的绝对值D a,b两数一正一负，且负数的绝对值大于正数的绝对值6.某粮店出售的三种品牌的面粉袋上分别标有质量为(25 0.1)kg,(250.2)kg,(250.3)kg 的字样,从中任意拿出两袋,它们的质量最多相差（）A 0.8kg B 0.6kg C 0.5kg D 0.4kg 7.一根 1m 长的小棒，第一次截去它的13，第二次截去剩下的13，如此截下去，第五次后剩下的小棒的长度是（）A.51()3m B.511()3mC.52()3mD 521()3m8.若 ab0,则baab的取值不可能是（）A 0 B 1 C 2 D -2 9.下列说法中正确的是（）Aa一定是负数B a 一定是负数学习好资料欢迎下载Ca 一定不是负数D2a一定是负数10.长城总长约为 6700010米，用科学计数法表示为（保留两位有效数字）（）A6.7510米B6.7610米C6.7710米D6.7810米11.据报道，至5 月 1 日零时，田湾核电站1、2 号两台机组今年共累计发电42.96亿千瓦时“42.96 亿”用科学记数法可表示为（）A74.296 10 B 84.29610 C 94.296 10 D 104.296 1012.把21与 6 作和、差、积、商、幂的运算结果中，可以为正数的有（）A、4 个 B、3 个 C、2 个 D、1 个13.数轴上的两点 A、B分别表示 6 和3，那么 A、B两点间的距离是（）A、6+(3)B、6(3)C、|6+(3)|D、|3(6)|14.在数 5.745，5.75，5.738，5.805，5.794，5.845 这 6 个数中精确到十分位得 5.8 的数共有（）A、2 个 B、3 个 C、4 个 D、5 个15.503、404、305的大小关系为（）A.503404305 B.305503404；C.305404503 D.404305503；二、填空题。16.比132大而比123小的所有整数的和为。17.若 aa那么 2a一定是。18.若 0a1,则a,2a,1a的大小关系是。19.多伦多与北京的时间差为 12 小时（正数表示同一时刻比北京时间早的时数），如果北京时间是10 月 1 日 14：00，那么多伦多时间是。20.上海浦东磁悬浮铁路全长30km，单程运行时间约为8min,那么磁悬浮列车的平均速度用科学记数法表示约为mmin。21.规定 ab=5a+2b-1,则(-4)6 的值为。22.已知 a=3，b=2，且 ab0,则 ab=。23.已知 a=25,b=-3,则 a99+b100的末位数字是。24.(4)的相反数是 _，5 的绝对值是 _ 文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 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ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7文档编码:CZ7H1W7O1P4 HB1E5O4F4Z2 ZG6I3O7C4T7学习好资料欢迎下载25.若0abca，则220052009()()aabbc=_ 三、计算题。26.1112 12()34227.82 32(-2 3)228.1551121()2()127722529.8783311 3(1)(3)13(10)5 42230.2220032002121(3)()(2)2931.6322111(0.5)2(3)0.533832.321322328325；33.52175.02154.34.10725.37.841；13111109.35.321322328325；36.52175.02154.四、解答题。37.已知有理数 a、b、c 在数轴上的位置如图所示，且ab求55ab的值化简2aabcacbacb文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 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升，问共耗油多少升？40.议一议,观察下面一列数，探求其规律：-1，21，-31，41，-51，611)填出第 7，8，9 三个数；，.2)第 2008个数是什么？如果这一列数无限排列下去，与哪个数越来越接近？41.2 如果有理数 a,b满足 ab2+(1b)2=0，试求1111(1)(1)(2)(2)(2007)(2007)abababab的值。文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 ZX5P1U3P6P2文档编码:CU8T10I9W9T3 HF1I7L1D9D9 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