In the short method, to sum any range of numbers with N(N+1)/2 formula. We can find many questions in less time which are as follow;

Q.1 What is the sum of total numbers from 1 to 100? Ans. 5050
Q.2 What is the sum of total numbers from 1 to 500? Ans. 125250
Q.3What is the sum of total numbers from 1 to 1000? Ans. 500500
Q.4 What is the sum of total numbers from 1 to 5000? Ans. 12502500

For calculations images, follow the below link;

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