2001~3000從最小的數(shù)開(kāi)始列2007,2016,2025,2034,2043,2052,2061,2070.2106,2115,2124,2133,2142,2151,2160.2205,2214,2223,2232,2241,2251.2304,2313,2322,2331,2340.百位從0開(kāi)始,每增加1,個(gè)數(shù)從8開(kāi)始就減少1.最后一...我怎么知道，本人小5，老師就叫我們高中的排列組合，練習(xí)中這道題我不會(huì)才求助的額，小學(xué)五年級(jí)就這么難。糾結(jié)~~~~‘
你看懂了么~~大哥，可以寫(xiě)詳細(xì)點(diǎn)的嗎，我看不懂啊2007,2016,2025,2034,2043,2052,2061,2070.
2106,2115,2124,2133,2142,2151,2160.
2205,2214,2223,2232,2241,2251.
2304,2313,2322,2331,2340.
2403,2412.2421.2430
2502.2511.2520
2601.2610
2700
3006,3015，3024,3033,3042,3051,3060，
3105,3114,3123,3132,3141,3150
3204.3213.3222.3231.3240

3303.3312.3321.3330
3402.3411.3420
3501.3510
3600
數(shù)數(shù)總會(huì)吧，一個(gè)一個(gè)數(shù)就好了。