二十四点2259 2277 6679 2455 2457 2568 2578 2668 2679 3779 3799 4

(9+5-2)*2=24
(7+7-2)/2=24
(6+7-9)*6=24
(5+5)*2+4=24
(7+5)*(4-2)=24
(2+6-5)*8=24
(2*5-7)*8=24
(8-6)*2*6=24
(9-7)*2*6=24
(9-7/7)*3=24
(7+9/9)*3=24
(5+4/4)*4=24