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ADD TO 100
WITH THE NUMBERS
123456789, MAKE THEM ADD UP TO 100
THEY MUST STAY IN THE SAME ORDER
YOU CAN USE ADDITION ,SUBTRACTION ,MULTIPLICATION
,AND DIVISION
REMEMBER THEY HAVE TO STAY IN THE SAME ORDER !!
WITH THE NUMBERS
123456789, MAKE THEM ADD UP TO 100
THEY MUST STAY IN THE SAME ORDER
YOU CAN USE ADDITION ,SUBTRACTION ,MULTIPLICATION
,AND DIVISION
REMEMBER THEY HAVE TO STAY IN THE SAME ORDER !!
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Replies: 27
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123-45-67+89
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good question, i'll have a go at one keeping the digits single.
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no, unlucky. 123 isnt a number available to use. 1 and 2 and 3 is though
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1+2+3+4+5 =15 x6 =90 -7 =83 +8+9 =100
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1+2+3-4+5+6+78+9=100
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can't use 78.
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Dixie wins
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no ones got it yet
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1 x 2 x 3 x 4 x 5 - 6 - 7 - 8 - 9 + 10 = 100
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Dixie did but he/she got the wrong symbols
1x2x3+4+5x6-7+8+9 |
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(1) + ((2 + 3 + 4) x (-5 + 6 - 7 + 8 + 9))
= (1) + ((9) x (11)) = 1 + 99 = 100 quod est demonstratum |
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ah read it wrong
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dixie's is correct too, i imagine there are a fair few soultions.
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Face it were all correct, sh1te brain teaser next one
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lol at the QED leo xD Study maths by any chance?
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ha ther's a load of correct answers
1+2+3+4+5+6+7+[8x9] = 100 |
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If you stick to the question exactly only + - * % and not brackets:
Dixes works out to be: 1x2x3+4+5x6-7+8+9 = 57 Mine works out to be: 1+2+3+4x-5+6-7+8+9 = 2 following correct mathematic order of calculations, would be interested if the OP has the answer where no brackets are used and this order is followed? |
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1+2+3+4+5+6+7+8x9 = 100
is the only correct answer on the thread so far. Yeah SoC did maths  |
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Thought so xD Only true maths geeks use QED
What uni did you go? |
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Dixies = 50 actually not 57 I'm being a muppet.
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oops, i used a 10 in mine [:x]
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went Cambridge for a term then had a bad accident then finished the year near here (Keele
 ) then left after a year for a job. |
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27 Jul 10 15:33
Dixie did but he/she got the wrong symbols 1x2x3+4+5x6-7+8+9 Thats correct get out your calculators. Sh1t one this is, so many ways of doing it |
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Ah [:p] I'm at manchester now, deciding whether to carry on with 2nd and 3rd years or drop out and do accountancy job ;x
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MM it will come out right on a standard calc cos it doesnt follow proper maths rules, without brackets you have to do the multiplies first so works out as:
1x2x3+4+30-7+8+9 try it in excel and it will come out as 50. |
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i dropped out then had good money for my age but some of my mates who got the degree and struggled on nothing are obviously reaping the benefits now, up to you whether you think it's worth it.
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