The answer is 155. Simply add up all of the numbers arithmetically like you would for two plus two. To make sure the answer is correct, check your work using a calculator.
10 plus 20 plus 30plus 40 plus 50 equals 150 because 50 plus 40 equals 90 plus 30 =120+20= 140 then + 10 = 150
18 + 10 + 20 + 30 + 15 + 50= 143
To solve this one, subtract 50 from 180 and you'll have your answer.
100 plus 50=150. 150+20=170.
65 + 65 + 65 + 90 + 90 + 90 + 90 + 50 + 50 + 50 + 50 + 50 + 50 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 995
10 plus 20 plus 30plus 40 plus 50 equals 150 because 50 plus 40 equals 90 plus 30 =120+20= 140 then + 10 = 150
18 + 10 + 20 + 30 + 15 + 50= 143
20 + 50 + 20 + 10 = 50 = 150
sixty is equal to 10 plus 50, and as 10 equals 50, and 50 equals 79, then it would be fair to assume that 60 equals 50 plus 79, which is 129.
To solve this one, subtract 50 from 180 and you'll have your answer.
100 plus 50=150. 150+20=170.
50 - 40 = 10 + 0
thirty plus 50 equals 80 it is quite simple. all you do is you just add 3 and 5 then add on the zero.
the unknown number is 30 as 50 = x +2(10) so 50 = x+20 so 30 = x
50 + 20 = 70.
The answer to -5 plus -20 equals -25. This is taught in class.
thinking is amazing