Forget the negative signs and add them, then put a negative sign in front of it. (The answer if you want it is -13)
20100
19
5050
Infinitely many numbers.
first, you would put the numbers in order then, you would add the 2 numbers and divide it by 2
add up all the numbers then divide it by how many numbers there are
you add up all the numbers in the sequence then divde your answer by how many numbers there are in the sequance so if you had the numbers 20, 19, 7, 45, 2 you would add them up which equals 93 then divide it by 5 (how many numbers in the sequence) so your answer would be 18.6
You would add the two numbers in the middle and divide them by two and the answer would be the median.
726
In this equation you would automatically add the numbers. The answer would be -12.
28
Add up all the numbers and divide the sum by 4.Then you get the answer.