The below workout with step by step calculation shows how to find what is the average of numbers from 200 to 500 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The numbers from 200 to 500 are
200, 201, 202, 203, . . . . , 498, 499, 500
Total Count of Numbers = 301
step 2 Find the sum of numbers from 200 to 500.
sum = 200 + 201 + 202 + . . . . + 499 + 500
= 105350
step 3 Divide the sum by 301
Average = 105350/301
= 350
350 is an average of numbers from 200 to 500.