回复：My daughter's 3rd grade math. Need help...

来源: 绿苹果园 于 2010-01-17 23:58:46 [] [旧帖] [给我悄悄话] 阅读数 : (458 bytes)
本帖于 2010-04-08 17:50:51 时间, 由版主 于德利 编辑

Why 3rd grade math? Maybe because the "only" operator needed here is addition:


1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
5 10 10 5
15 20 15
35 35
70

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• 回复：回复：My daughter's 3rd grade math. Need help... -JIAYANGGUIZI2- ♂ 给 JIAYANGGUIZI2 发送悄悄话 (104 bytes) () 01/18/2010 postreply 08:13:58

• 回复：回复：回复：My daughter's 3rd grade math. Need help... -Jinjing- ♀ 给 Jinjing 发送悄悄话 (332 bytes) () 01/18/2010 postreply 10:28:05

• 回复：回复：回复：回复：My daughter's 3rd grade math. Need help... -JIAYANGGUIZI2- ♂ 给 JIAYANGGUIZI2 发送悄悄话 (137 bytes) () 01/18/2010 postreply 10:45:37

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