Ответ:\(600-500=100\)\(430+80=510\)\(670-500=170\)\(40+90=130\)\(310-40=270\)\(360-60=300\)\(540+40=580\)\(400+300=700\)\(270+50=320\)\(430+70=500\)\(240-60=180\)\(760-80=680\)