【重点】百位804175,十位479520.
1、排除643头,236百,813十,尾927
2、铁卒:02、15、57、36.
3、三字现:035,238,038,379,247,246,156,239
4、二定位5XX3 94XX 8X7X 07XX 0X7X 90XX 8X5X 77XX 74XX 5X4X 7XX3 X4X4 8X2X 7X2X 8X9X 70XX 5X5X 0XX3
5、三定位:579X,749X,58X8,87X8,847X,81X3,X444,807X,519X,X723,98X4,X176,94X4,X748,