125-4 45+3 20- 80 = 25

125-4 45+3 20- 80 = 25.5-4 9.5 +3 4.5- 16.5 =5 5-4.3 5+3.2 5-4 5= - + - = -5 5 12 5 6 5 4 5 5 5.