gg1978 wrote:A : 用391 去...(恕刪) 我覺得A與B都是乘六次B:9 * 1 = 00019 * 9 = 08109 * 3 = 27-------------035196 * 1 = 000606 * 9 = 054006 * 3 = 18000-------------23460+03519--------------26979只是寫出來的算式沒那麼長....