104 minus 13 is 91.
137 minus 104 is 33.
It is: 104/600 = 0.17333 ... recurring 3 as a decimal
160 - 104 = 56
104 - 26 _____ 078
It is: 275-104 = 171
Whenever you minus a negative (number), you add. So it would be 104 - (-13), or 104 + 13, which is 117
1200-600=600
54
90
600-300=300
600 - 537 = 63