8.4
基于印度吠陀数学实践简单乘法应用程序
基于印度吠陀数学实践简单乘法应用程序
- 特征
引入了简单公式
实践
游戏(时间测量)和排名
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87*83 =?
1。8 *(8 + 1)= 72
2。7 * 3 = 21
3。7200 + 21 = 7221
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