The answer is 65. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
the sum for 20 + 40 + 70 + 80 = 210
figure it out.
50
The sum is 40
254
40
33 + 25 + 16 = 74
The sum is 50 and 31/40 The difference is 1/40
The sum of 25 and 40 is 65. The process of calculating this number is known as addition, which totals two or more numbers together.
25+32=57
It is: 7+8+25 = 40
50 put it like this 20 plus 20 is 40 than 5 plus 5 is 10 then whats 40 plus 10 which is 50 if you dont understand that 20 plus 5 is 25