What is the Average of Numbers from 80 to 100?

getcalc.com's average calculator to find what is the mean or average of natural numbers from 80 to 100.
90 is an average of numbers from 80 to 100 mentioned in the below table, by substituting the total sum and count of numbers in the below formula.

The below is the complete list of numbers or positive integers from 80 to 100 for user reference.

The below workout with step by step calculation shows how to find what is the average of numbers from 80 to 100 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The numbers from 80 to 100 are
80, 81, 82, 83, . . . . , 98, 99, 100
Total Count of Numbers = 21

step 2 Find the sum of numbers from 80 to 100.
sum = 80 + 81 + 82 + . . . . + 99 + 100
= 1890

step 3 Divide the sum by 21 Average = 1890/21 = 90

90 is an average of numbers from 80 to 100.

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