(5-2/10)*5=24
2*(3+4+5)=24
(3+5-4)*6=24
(7+5-6)*4=24
8*6/(7-5)=24
6/(9-7)*8=24
9*8/(10-7)=24
8,9,10,11无解.
10+11+12-9=24
10+12+13-11=24
(5-2/10)*5=24
2*(3+4+5)=24
(3+5-4)*6=24
(7+5-6)*4=24
8*6/(7-5)=24
6/(9-7)*8=24
9*8/(10-7)=24
8,9,10,11无解.
10+11+12-9=24
10+12+13-11=24