..2 = 7...7...7, 6...9...9 = 9...8...9, 6...5...6 = 7...6...6 ,9...9...9 = 3...3...3 ,7...8...7 = 7...6...7, 4...3...2 = 6...7...7, 72...9...6 = 14...2...2, 27...3...9 = 7...4...7.
9+9+9=8*3+3 9+9+9=3*3*3 (9-6)*2=7-7:7 27:3+9=7+4+7 72:9+6=14*(2:2) 4*(3+2)=6+7+7 7*(8-7)=(7-6)*7 (6-5)*6=(7-6)*6 6*9+9=9*8-9 6*6+6=7*5+7