The below workout with step by step calculation shows how to find what is the average of numbers from 600 to 800 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The numbers from 600 to 800 are
600, 601, 602, 603, . . . . , 798, 799, 800
Total Count of Numbers = 201
step 2 Find the sum of numbers from 600 to 800.
sum = 600 + 601 + 602 + . . . . + 799 + 800
= 140700
step 3 Divide the sum by 201
Average = 140700/201
= 700
700 is an average of numbers from 600 to 800.