10
33
The sum of the numbers given is 31. 1 + 2 + 4 + 8 + ... + 2n = 2n+1 - 1
The sum of 8 and 2/3 is 8 2/3
-6
The sum of 1/8 and 3/8 is 1/2
12/10+2=12
495
The sum of 10 plus 8 is 18.
44
The answer to 2 plus 8 is 10. Addition is a basic arithmetic operation where two or more numbers are combined to find their total sum. In this case, adding 2 and 8 together results in 10, as each number contributes its value to the final sum.
-2
The sum of 2 1/2 + 3/8 is 2 7/8