Hints: 1+3+3x3 = 13; 1+3+3x3+3x3x3 = 40; 1+3+3x3+3x3x3+3x3x3x3 = 121
5th grader math rocks! problem - r u smarter than a 5th grader?
Hints: 1+3+3x3 = 13; 1+3+3x3+3x3x3 = 40; 1+3+3x3+3x3x3+3x3x3x3 = 121
所有跟帖:
• 回复:5th grader math rocks! problem - r u smarter than a 5th grade -Jinjing- ♀ (198 bytes) () 02/09/2010 postreply 17:08:48
• brilliant -一用户- ♂ (0 bytes) () 02/09/2010 postreply 19:00:04
• it's harder without the HINT. -pj- ♂ (0 bytes) () 02/12/2010 postreply 06:43:57
• 回复:it's harder without the HINT. -Jinjing- ♀ (32 bytes) () 02/12/2010 postreply 08:22:13
• 回复:5th grader math rocks! problem - r u smarter than a 5th grade -hisch- ♂ (219 bytes) () 02/18/2010 postreply 16:08:33
• Different Proof -hisch- ♂ (0 bytes) () 02/18/2010 postreply 16:10:06