9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
9 + 8 + 7 + 6 + 5 + 4 = 39
89
8( 6 - 5) + 10 = 18
9 + 8 + 7 + 6 + 5 + 4 + 3 = 42
5+5=10 6+8=14 14+10=24
16
9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
It is: -5+(-6)+3 = -8
4 + 5 + 6 + 7 + 8 + 9 = 39
9 + 8 + 7 + 6 + 5 + 4 = 39
89
53
120
6 + 4 + 3 + 4 + 4 + 5 + 4 + 6 + 5 + 4 + 8 + 4 = 57
8( 6 - 5) + 10 = 18
9 + 8 + 7 + 6 + 5 + 4 + 3 = 42