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(1 + 100) x 100/2 = 5050. Sum of numbers 1 to n is (n/2) x (n + 1)
basically, you get 5050.
You add all the numbers with + signs and subtract all that have minus signs.
no. it actually means that you add all the numbers together and your answer is the mean
average
Yes, the numbers 0 through to 36 all add up to 666.
That means to add all the numbers together.