The below workout with step by step calculation shows how to find what is the average of numbers from 200 to 300 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 300 are
200, 201, 202, 203, . . . . , 298, 299, 300
Total Count of Numbers = 101
step 2 Find the sum of numbers from 200 to 300.
sum = 200 + 201 + 202 + . . . . + 299 + 300
= 25250
step 3 Divide the sum by 101
Average = 25250/101
= 250
250 is an average of numbers from 200 to 300.