于雷编写的《印度数学》整理总结了数十种的印度秘密计算法，不仅强化了我们的加减乘除的运算能力，还包括平方、立方、平方根、立方根、方程组以及神秘奇特的手算法和演算法。改变的不仅是孩子的数学成绩，更是孩子的思维方式，让孩子从一开始就站在一个不一样的起点上。
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