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Countdown type puzzle

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Seasider | 13:06 Wed 22nd Feb 2006 | Quizzes & Puzzles
5 Answers
Using 123456789, create a sum equal to 100. you can only use add, subtract, multiply & divide. I can see that the last action must be plus or minus 9, but don't know where else to start.
Any ideas?
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assuming you have to use all the numbers, its works this way may be a bit longwinded though


6 + 7 + 8 + 9 + 30


- 5 = 25


x 4 = 100


+ 1 = 101


+ 2 = 103


- 3 = 100

soory 6 + 7 + 8 + 9 = 30!
9 x 8 = 72. Add all the others and you get 100.

123 - 45 - 67 + 89 = 100


Found on


http://www.creativepuzzels.nl/spel/speel1/puzzel62-2.htm


after a search on Google.

Question Author
<DIV>Thanks all. Personally, I think the one from JerryB is the most elegant.

<DIV>Cheers

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