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Puzzle of the Hundred Steps

By Drew Foster

Published on Wed Sep 25 2019 00:00:00 GMT+0000 (Coordinated Universal Time)

There is a famous story that is said to have happened in a German primary school. A young student named Gauss had been misbehaving so his teacher gave him a task: add all the numbers from 1 to 100.

Seven year old Gauss is said to have given the correct answer within seconds, to the astonishment of his teacher. Gauss had spotted a pattern with the numbers that made the problem much easier to solve, but what was the pattern?

Can you solve these problems?

If you want to challenge your student' in the same way Gauss' teacher did here's my take on the puzzle:

Alternatively you can click here to download it!

DON'T FORGET THE ANSWER SHEET, DOWNLOAD IT HERE.