<span>As far as i know it is related to Gauss.
Write the sequences forward and backward first.
1 +2 +3 +.....+1002
1002+1001+1000+.....+1
--------------------------------------... Adding them
1003+1003+......(1002 times)
=1002x1003
But this contains the series twice.
So, the sum is = 1002x1003/2=501x1003=502503. answer</span>
Answer:
I believe it is 1 4 2
Step-by-step explanation:
Well subtract 8 from 1000 and then do that five times. so 992,984,976,968, and 960<span />
