thirty plus 50 equals 80 it is quite simple. all you do is you just add 3 and 5 then add on the zero.
50 + -30 + -95 = -75
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
30 + 50 + 70 = 150
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.
30 + 50 = 80
10 plus 20 plus 30plus 40 plus 50 equals 150 because 50 plus 40 equals 90 plus 30 =120+20= 140 then + 10 = 150
L = 50 plus xxx=30 plus v=5 plus ii=2 therefore lxxxvii = 50+30+5+2 = 87
30 + 50 - 56 + 2306 = 2330