6 - 8 + 0 = -2
8 - 7 - 0 = 1
45 : 5 - 0 = 9
54 - 0 : 9 = 54
0 + 7 - 6 = 1
0 - 26 - 100 = -126
Ответ: -2; 1; 9; 54; 1; -126