新东方 21天提升数学计算力8年级

图书标准信息

• 作者 北京新东方优能中学研发中心
• 出版社 浙江教育出版社
• 出版时间 2020-11
• 版次 1
• ISBN 9787572209284
• 定价 34.60元
• 装帧 其他
• 开本 16开
• 纸张 胶版纸

【内容简介】

《21天提升数学计算力 8年级》旨在提升8年级学生的基础计算能力。本书将一共包括整式乘除、因式分解、分式计算、二次根式计算、解一元二次方程五大板块，将8年级所需的计算能力和技巧划分成21天训练的内容。在每天的内容中，用“笔记清单”的形式将当天涉及的计算方法和技巧总结提炼，然后通过例题的形式引入，具体讲解计算方法和技巧。*后是“计算演练”和“链接中考”板块，帮助学生由易到难、循序渐进地练习和巩固，并提前熟知中考的考查形式。
  通过本书，学生能很好地训练自己的计算能力，掌握计算技巧，提升计算速度，提高计算的准确性。

【作者简介】

    北京新东方优能中学研发中心是新东方优能中学的核心业务部门，由优能中学各教研组骨干教师组成，他们的平均教龄均在五年以上且仍奋斗在教学一线。他们致力于将新颖、热门的教学经验和成果带给广大学子。北京新东方优能中学研发中心出品了优能中学所用的各科教材、教辅资料以及宣传品，深受读者喜爱。今后北京新东方优能中学研发中心会以更高标准严格要求每个产品，致力于为更多学子提供更好的学习体验。

【目录】

整式乘除

第1天 幂的运算·························································2

第2天 整式的乘法······················································5

第3天 整式的除法······················································8

第4天 平方差公式······················································11

第5天 完全平方公式···················································13

因式分解

第6天 提公因式法······················································17

第7天 公式法(一) ······················································20

第8天 公式法(二) ······················································22

第9天 十字相乘法······················································25

分式计算

第10天 分式的乘除····················································29

第11天 分式的加减····················································32

第12天 分式的混合运算··············································35

第13天 整数指数幂····················································38

第14天 分式方程·······················································41

二次根式计算

第15天 二次根式的乘法··············································45

第16天 二次根式的除法··············································48

第17天 二次根式的加减··············································51

第18天 二次根式的混合运算········································54

解一元二次方程

第19天 解一元二次方程之配方法··································58

第20天 解一元二次方程之公式法··································61

第21天 解一元二次方程之因式分解法····························64