2011=670*3+1+2+4+8-9-5

We have just welcomed the New Year, using all 10 digits and 4 basic arithmetic signs(+, -, /, and *).

Try to get 2011 with ALL 10 digits, significantly fewer signs and no brackets.

Hint: My solution uses 10 distinct digits and 3 signs only, but maybe a better solution exists.

(In reply to re(2): best I can do -- computer findings by Charlie)

 270 * 58 - 13649
 27 * 580 - 13649
 2908 * 6 - 15437
 3250 * 6 - 17489
 325 * 60 - 17489
 3 * 4867 - 12590
 3 * 4957 - 12860
 3801 * 7 - 24596
 3810 * 7 - 24659
 381 * 70 - 24659
 450 * 67 - 28139
 4 * 5076 - 18293
 450 * 76 - 32189
 45 * 670 - 28139
 45 * 760 - 32189
 4809 * 7 - 31652
 4867 * 3 - 12590
 4957 * 3 - 12860
 49 * 657 - 30182
 5071 * 9 - 43628
 5076 * 4 - 18293
 51 * 604 - 28793
 528 * 91 - 46037
 561 * 79 - 42308
 580 * 27 - 13649
 58 * 270 - 13649
 60 * 325 - 17489
 604 * 51 - 28793
 6 * 2908 - 15437
 6 * 3250 - 17489
 63 * 841 - 50972
 657 * 49 - 30182
 670 * 45 - 28139
 67 * 450 - 28139
 70 * 381 - 24659
 7 * 3801 - 24596
 7 * 3810 - 24659
 7 * 4809 - 31652
 760 * 45 - 32189
 76 * 450 - 32189
 7 * 9048 - 61325
 79 * 561 - 42308
 825 * 91 - 73064
 841 * 63 - 50972
 9048 * 7 - 61325
 91 * 528 - 46037
 91 * 825 - 73064
 9 * 5071 - 43628

Posted by Charlie on 2011-01-01 14:41:26