408*270+21.008:808= 71.370:234+695*50= 280.084:28-125*8= (327+541.350:450):3=
1) 408•207+21.008:808= 84.456 2) 71.370:234+695•50= 35.055 3) 280.084:24-125•8= 10670.1(6) 4)(327+541.350:450):3=510