240 +(118-80)-3= 240+38-3=275
358 + (412 - 299) - 4 = 358+ 133 - 4 = 467
980 - 1376 + 125 = 1105 - 1376 = - 271
631 - (683 - 185 ) :6 = 631 - 498 :6 = 631 - 83 = 548
240 +(118-80)-3= 240+38-3=275
358 + (412 - 299) - 4 = 358+ 133 - 4 = 467
980 - 1376 + 125 = 1105 - 1376 = - 271
631 - (683 - 185 ) :6 = 631 - 498 :6 = 631 - 83 = 548