Imaginer1 Posted October 22, 2008 Share Posted October 22, 2008 (edited) Use addition and multiplication to make theese numbers add up to 100: 123456789 You cannot change the order of the numbers. You also cannot use a number two times. You must use them in the order shown. To make it harder, only use 1 multiplication mark! In my class I showed it to everyone, and the teacher saw it and said she would give a peice of candy to whoever solved it over the weekend. I'm the only one who got candy because no one got it!! The answer will be posted in a week, giving you some time to think... If you get it right...... I dunno. Maybe there will be some sort of virtual prize. Each week a new puzzle will be up, cuz I make a ton in my spare time Edited October 22, 2008 by Imaginer1 forgot a rule Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 22, 2008 Share Posted October 22, 2008 [hide]1+2+3+4+5+6+7+8*9[/hide] That should be it. Link to comment Share on other sites More sharing options...
Mr Skeptic Posted October 22, 2008 Share Posted October 22, 2008 There's at least one more solution. [hide]1*2*3+4+5+6+7+8*9[/hide] Link to comment Share on other sites More sharing options...
Imaginer1 Posted October 22, 2008 Author Share Posted October 22, 2008 I think that needs something else... do your math on a calculator and what do you get? hint hint- I get 329 with that. Link to comment Share on other sites More sharing options...
Mr Skeptic Posted October 22, 2008 Share Posted October 22, 2008 Are parenthesis allowed? We might have lots of solutions then. Link to comment Share on other sites More sharing options...
Imaginer1 Posted October 22, 2008 Author Share Posted October 22, 2008 and there are multiple answers, so to narrow it down to MY answer, use only 1 multiplication mark! muhaha! parentheses are allowed... usually no one thinks of that! oh, just forget the puzzle Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted October 22, 2008 Share Posted October 22, 2008 Your calculator must not do order of operations correctly. Link to comment Share on other sites More sharing options...
Imaginer1 Posted October 22, 2008 Author Share Posted October 22, 2008 Likely. Don't you hate that? Link to comment Share on other sites More sharing options...
Fatuus Preteh Posted October 23, 2008 Share Posted October 23, 2008 (edited) I think i got it. But maybe i'm thinkin a litlle too much ou the box. What do you think [hide]1+2*3+4+5+67+8+9[/hide] Edited October 23, 2008 by Fatuus Preteh Link to comment Share on other sites More sharing options...
DrP Posted October 23, 2008 Share Posted October 23, 2008 Cap'n Refsmmat had the answer no? Assuming you put the brackets in the right place. Link to comment Share on other sites More sharing options...
Dr Tesla Posted November 10, 2008 Share Posted November 10, 2008 The shortest solution (fewest operations) is 123-45-67+89 I think that should do it although I have been wrong before .......once in a past life I think. Link to comment Share on other sites More sharing options...
Harlequinne Posted December 16, 2008 Share Posted December 16, 2008 1+2+3+4+5+6+7+(8x9) Link to comment Share on other sites More sharing options...
AlokPandey Posted January 21, 2009 Share Posted January 21, 2009 tat was simple... Link to comment Share on other sites More sharing options...
SFNfan#1 Posted January 25, 2009 Share Posted January 25, 2009 Got it on my 1st try! I got what harlequinne got although Dr. Tesla's solution seems more creative. Link to comment Share on other sites More sharing options...
Nancy4u Posted July 1, 2009 Share Posted July 1, 2009 [ [ [ ö = 33 ö y ö ù = 39 ù y ù ù = 33 ö ö ö [ = 27 = 24 = ? = 24 = 21 Merged post follows: Consecutive posts mergedHow do I post a "table" math puzzle? Link to comment Share on other sites More sharing options...
Kyrisch Posted July 2, 2009 Share Posted July 2, 2009 I think I get it -- each row across is, consecutively, 24, ?, 24, 21. But that's not really a puzzle, it's an easily solvable system of equations with four variables. In fact, since there are only four variables, it could be solved for using just the values of the columns and ignoring the rows altogether. Link to comment Share on other sites More sharing options...
Pericles Posted July 8, 2009 Share Posted July 8, 2009 1*2+3*4+56+7+8+9=100 there's one way using two multiplication marks. Link to comment Share on other sites More sharing options...
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