2009-03-15 19:51:45拜足
數字 撲朔迷您 5
_1_2_3_4_5_6_7_8_ 9 = 100
空格中填入 +, - , x
求解
(*數字5 撲朔解http://mypaper.pchome.com.tw/littleflea/post/1312352266)
(**數字4 撲朔解
6729 / 13458 = 9327 / 18654
(there are 10 other possibilities to write similar fractions by using all digits from 1 to 9 once)