50 + -30 + -95 = -75
95 + 80 + 80 + 30 = 285
95
50+45=95
45
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
30 + 50 + 70 = 150
30 + 25 + 15 + 25 = 95
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
30 + 10 + 5 + 5 = 50
The sum of 70 + 30 + 1250 + 50 + 100 = 1500
18 + 10 + 20 + 30 + 15 + 50= 143
30 + 50 + 40 = 120 centimetres.