Răspuns:
1+ 90= 91
1-7x 823,543 = 1- 5764801 = - 5764800
125+8x25-9x5 = 125+ 200 - 45 = 325-45= 280
1+2017 x0 + 1 x 32 = 1+ 1 x 32 = 1+32= 33