32.2 - (-15.9) + 10 - 15.9 + 7.8
32.2 - (-15.9) + 10 - 15.9 + 7.8= 50Work32.2 - (-15.9) = 48.1+10= 58.158.1 - 15.9= 42.242.2+7.8= 50