不覺得簡單呀,也可以這樣:
13X12
13X10=130
13X2=26
130+26=156
回複:印度的九九乘法
所有跟帖:
• simple! (see detail below) -1iron- ♂ (35 bytes) () 03/28/2010 postreply 10:12:41
不覺得簡單呀,也可以這樣:
13X12
13X10=130
13X2=26
130+26=156
• simple! (see detail below) -1iron- ♂ (35 bytes) () 03/28/2010 postreply 10:12:41
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