The below workout with step by step calculation shows how to find what is the average of numbers from 501 to 1000 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The numbers from 501 to 1000 are
501, 502, 503, 504, . . . . , 998, 999, 1000
Total Count of Numbers = 500
step 2 Find the sum of numbers from 501 to 1000.
sum = 501 + 502 + 503 + . . . . + 999 + 1000
= 375250
step 3 Divide the sum by 500
Average = 375250/500
= 750.5
750.5 is an average of numbers from 501 to 1000.