5.4÷1.8+240×1.5 9000÷72×(1.25×0.7×8) 61-(1.25+2.5×0.7) [(10-0.8)+9.85]-2÷0.125 3^2*3.25678 3^3-5 12+5268.32-2569 123+456-52*8 789+456-78 181+2564）+2719 378+44+114+242+222 276+228+353+219 (375...