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中学生数学课外读物 速算与验算

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中学生数学课外读物 速算与验算

姚人杰著
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1 (p1): 引言
5 (p2): 一 速算法
6 (p2-1): 1.改变运算种类的速算法
11 (p2-2): 2.改变运算程序的速算法
20 (p2-3): 3.应用补充数的速算法
26 (p2-4): 4.应用公式的速算法
46 (p3): 二 验算法
46 (p3-1): 1.利用逆运算关系的验算法
48 (p3-2): 2.改变运算程序的验算法
50 (p3-3): 3.观察法
54 (p3-4): 4.九余数验算法
Year:
1963
Edition:
1963
Publisher:
上海:上海教育出版社
Language:
Chinese
File:
PDF, 1.57 MB
IPFS:
CID , CID Blake2b
Chinese, 1963
Download (pdf, 1.57 MB)
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