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
40
254
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.
The sum is 50 and 31/40 The difference is 1/40
33 + 25 + 16 = 74
25+32=57
It is: 7+8+25 = 40
159