# Guido KIRA odds and evens

KIRA did not have to add the odds and the evens. It was a trick question. Each difference is one.
one times five = five

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1. By the way, story of Gauss in elementary school:

add numbers from 1 to 100 :

50.5 * 100 = 5050

1 + 2 + 3 ...... 100
+
100 + 99 + 98 ..... 1
= 101 + 101 + 101 .... +101
so
2 S = 100*101 = 10100
so s = 5050

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posted by Damon

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