1) 580-48050+30)*3=562 1.50+30=80 2.480/80=6 3.6*3=18 4.580-18=562 2) 470-420140:2)+2189=2653 1.140/2=70 2.420/70=6 3.470-6=764 4.464+2189=2653 3) (377+255):4-130+558:2-30*6=127 1.377+255=632 2. 632/4=158 3.158-130=28 4. 558/2=279 5.30*6=180 6. 279-180=99 7. 28+99=127