9.1
基于印度吠陀数学实践11〜19,101〜109乘法应用
基于印度吠陀数学实践11〜19,101〜109速度乘法应用
- 特征
引入了简单公式
实践
游戏(时间测量)和排名
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* 11〜19乘法
12 * 15
1。(12 + 5) * 10 = 170
2。2 * 5 = 10
3。170 + 10 = 180
* 101〜109乘法
101 * 103의의
1。101 + 3 = 104
2。1 * 3 = 3
3。10403
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