The below workout with step by step calculation shows how to find what is the average of numbers from 250 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 250 to 500 are
250, 251, 252, 253, . . . . , 498, 499, 500
Total Count of Numbers = 251
step 2 Find the sum of numbers from 250 to 500.
sum = 250 + 251 + 252 + . . . . + 499 + 500
= 94125
step 3 Divide the sum by 251
Average = 94125/251
= 375
375 is an average of numbers from 250 to 500.