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Puzzle of the Day

These puzzles are also printed in Eight days a week, a booklet published by the Association of Teachers of Mathematics.The Association of Teachers of Mathematics

Write the numbers from 1 to 100 with either an add or subtract sign between each. Can you make the total 2000?

Answer: 1+2+...+60-61+62+63...+83-84-85-...99+100


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