Secrets of Mental Math 心算的秘密

时间:2012-08-08 03:33:06
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文件名称:Secrets of Mental Math 心算的秘密

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更新时间:2012-08-08 03:33:06

数学 心算

英语的,可以了解了解,让脑瓜更灵活 Mental Addition and Subtraction Basic Multiplication Intermediate Multiplication Mental Division The Art of “Guesstimation” Pencil-and-Paper Math Memorizing Numbers Advanced Multiplication The Art of Mathematical Magic How Math Helps Us Think About Weird Things


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