七年级数学上册第二章有理数2.11有理数的乘方作业(新版)华东师大版.doc

上传人:visitstep340 文档编号:1141268 上传时间:2019-05-08 格式:DOC 页数:2 大小:97.50KB
下载 相关 举报
七年级数学上册第二章有理数2.11有理数的乘方作业(新版)华东师大版.doc_第1页
第1页 / 共2页
七年级数学上册第二章有理数2.11有理数的乘方作业(新版)华东师大版.doc_第2页
第2页 / 共2页
亲,该文档总共2页,全部预览完了,如果喜欢就下载吧!
资源描述

1、12.11有理数的乘方1.28cm接近于 ( )A.珠穆朗玛峰的高度 B.三层楼的高度 C.姚明的身高 D.一张纸的厚度2.下列每对数中,不相等的一对是 ( )A.(-2)3和-2 3 B.(-2)2和 22C.(-2)4和-2 4 D.|-2|3和|2| 33.某种细胞开始有 2个,1 小时后分裂成 4个并死去 1个,2 小时后分裂成 6个并死去 1个,3小时后分裂成 10个并死去 1个,按此规律,5 小时后细胞存活的个数是 ( )A.31 B.33 C.35 D.374.最接近于(- )3的整数是_.325.观察下列算式:2 1=2,22=4,23=8,24=16,25=32,26=64,

2、27=128,28=256,通过观察,用所发现的规律确定 215的个位数字是_.6.现规定一种新运算“*”: a*b=ab,如 2*3=23=8,那么 *3=_.127.计算:(1)-(-0.1) 3.(2)-( )2.(3)(-1.5)3.348.有一种纸的厚度是 0.1毫米,若拿两张重叠在一起,将它们对折一次后,厚度为 40.1毫米.(1)对折两次后,厚度为多少毫米?(2)对折 6次后,厚度为多少毫米?9. (1)通过计算比较下列各式中两数的大小(填“” “(n+1)n;(3)根据上面的猜想,可以知道:2013 2014_20142013.2参考答案:1.C2.C3.B4.【解析】(- )3=- =-3.375,因而-443,因为 45=1024,54=625,所以 4554,因为 56=15625,65=7776,所以 5665,.(2)由(1)可以猜测 nn+1与( n+1)n(n为正整数)的大小关系.当 n2 时, nn+1(n+1)n;(3)因为 n=20133,所以 2013201420142013.

展开阅读全文
相关资源
猜你喜欢
  • GOST R 55858-2013 Occupational safety standards system Materials for clothes Method for determination of summary thermal resistance《职业安全标准体系 衣服材料 总热阻的测定方法》.pdf GOST R 55858-2013 Occupational safety standards system Materials for clothes Method for determination of summary thermal resistance《职业安全标准体系 衣服材料 总热阻的测定方法》.pdf
  • GOST R 55859-2013 Air transport The safety management system of aviation activities Database Creating databases for safety management systems of service providers aviation activiti.pdf GOST R 55859-2013 Air transport The safety management system of aviation activities Database Creating databases for safety management systems of service providers aviation activiti.pdf
  • GOST R 55860-2013 Air transport aviation safety management system Conception of safety management system Basic provisions and main principals《航空运输航空安全管理系统 安全管理系统的概念 基本规定和基本原则》.pdf GOST R 55860-2013 Air transport aviation safety management system Conception of safety management system Basic provisions and main principals《航空运输航空安全管理系统 安全管理系统的概念 基本规定和基本原则》.pdf
  • GOST R 55861-2013 Aviation transport Aviation activities safety management system Methods of aviation activities safety management system conformity determination Methods of aviatimity.pdf GOST R 55861-2013 Aviation transport Aviation activities safety management system Methods of aviation activities safety management system conformity determination Methods of aviatimity.pdf
  • GOST R 55862-2013 Air transport Aircraft industry complex safety management system (in terms of services suppliers) Aviation services suppliers safety management system including ac ma.pdf GOST R 55862-2013 Air transport Aircraft industry complex safety management system (in terms of services suppliers) Aviation services suppliers safety management system including ac ma.pdf
  • GOST R 55863-2013 Air transport Aviation Industry Safety Management system Typical Service providers Safety Management Manual《航空运输 航空业的安全管理系统 典型的服务提供商的安全管理手册》.pdf GOST R 55863-2013 Air transport Aviation Industry Safety Management system Typical Service providers Safety Management Manual《航空运输 航空业的安全管理系统 典型的服务提供商的安全管理手册》.pdf
  • GOST R 55864-2013 Air transport Order for Airworthiness mandatory information issue《航空运输 适航强制性信息发布命令》.pdf GOST R 55864-2013 Air transport Order for Airworthiness mandatory information issue《航空运输 适航强制性信息发布命令》.pdf
  • GOST R 55865-2013 Air transport System of management safety of aviation activity Collection tools flight information igts《航空运输 航空活动的安全管理系统 收集工具航班信息igts》.pdf GOST R 55865-2013 Air transport System of management safety of aviation activity Collection tools flight information igts《航空运输 航空活动的安全管理系统 收集工具航班信息igts》.pdf
  • GOST R 55866-2013 Air transport System of management safety of aviation activity The structure of procedures and methods of collecting and processing data igts and monitoring durin.pdf GOST R 55866-2013 Air transport System of management safety of aviation activity The structure of procedures and methods of collecting and processing data igts and monitoring durin.pdf
  • 相关搜索

    当前位置:首页 > 考试资料 > 中学考试

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1