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Add down to One (Posted on 2003-05-21)

The numbers 0-9 are lined up in a row, like this:

0 1 2 3 4 5 6 7 8 9

You have to put in + and - signs in the blanks, so that in the end it will all equal 1.

Also, if possible, try to make expressions resulting in 0 and -1.

See The Solution Submitted by Jonathan Waltz

Rating: 2.5000 (6 votes)

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Puzzle Thoughts

Comment 17 of 17 |

(I) There are many ways to achieve this. One of them is:

0+1-2-3-4+5-6-7+8+9=1

(II) It is NOT possible to make expressions resulting in 0. However, negative one is possible by reversing all the signs above.

(III) One of the ways is:

0-1-2-3-4-5+6+7-8+9= -1

Edited on May 20, 2023, 9:46 am

Posted by K Sengupta on 2022-09-06 00:45:22

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