1) - 1.25 + 17.8 = 16.55
2) - 11.12 - 0.5 = 11.62
3) 16.55 : 11.62 = 28.17
4) 17.8 - 11.12 = 6.68
4) 28.17 : 6.68 = 4.22
1) - 1.25 + 17.8 = 16.55
2) - 11.12 - 0.5 = 11.62
3) 16.55 : 11.62 = 28.17
4) 17.8 - 11.12 = 6.68
4) 28.17 : 6.68 = 4.22