《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。很后是“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。

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整式乘除天 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0天 分式的乘除····················································291天 分式的加减····················································322天 分式的混合运算··············································353天 整数指数幂····················································384天 分式方程·······················································41二次根式计算5天 二次根式的乘法··············································456天 二次根式的除法··············································487天 二次根式的加减··············································518天 二次根式的混合运算········································54解一元二次方程9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