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 Happy New Year (Posted on 2011-01-01)

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.

 No Solution Yet Submitted by Ady TZIDON No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)
 re(4): best I can do -- computer solutions involving division | Comment 5 of 9 |
(In reply to re(3): best I can do -- computer solutions involving multiplication by Charlie)

These operations are sequential, so if division is the second operation, imagine parentheses around the preceding addition or subtraction:

10234 + 7865 / 9
10235 + 7864 / 9
10243 + 7856 / 9
10246 + 7853 / 9
10253 + 7846 / 9
10256 + 7843 / 9
10264 + 7835 / 9
10265 + 7834 / 9
102753 / 49 - 86
10728 - 4695 / 3
10834 + 7265 / 9
10835 + 7264 / 9
10843 + 7256 / 9
10846 + 7253 / 9
10853 + 7246 / 9
10856 + 7243 / 9
10864 + 7235 / 9
10865 + 7234 / 9
127 + 90368 / 45
128 + 90367 / 45
13920 - 5876 / 4
14805 - 2739 / 6
15027 - 6983 / 4
167 + 90328 / 45
168 + 90327 / 45
1 + 742058 / 369
18042 - 3965 / 7
18360 / 4 - 2579
18609 - 4532 / 7
187065 - 42 / 93
19350 - 7284 / 6
19560 - 3472 / 8
19740 - 3652 / 8
20457 - 8391 / 6
20739 - 4651 / 8
20931 - 6854 / 7
21063 - 4975 / 8
23145 - 9068 / 7
24051 - 7963 / 8
25806 / 17 + 493
28506 / 3 - 7491
29451 / 3 - 7806
296058 / 147 - 3
30789 - 624 / 15
327 + 90168 / 45
328 + 90167 / 45
34689 - 502 / 17
35049 - 862 / 17
35208 / 4 - 6791
35402 + 796 / 18
35406 + 792 / 18
35492 + 706 / 18
35496 + 702 / 18
35702 + 496 / 18
35706 + 492 / 18
35792 + 406 / 18
35796 + 402 / 18
367 + 90128 / 45
368 + 90127 / 45
38160 / 4 - 7529
38520 / 4 - 7619
401 + 53896 / 27
402 + 35796 / 18
406 + 35792 / 18
406 + 53891 / 27
43098 / 6 - 5172
43620 / 15 - 897
45087 / 19 - 362
4620 / 35 + 1879
47109 - 856 / 23
47823 / 19 - 506
47850 / 29 + 361
48720 / 35 + 619
491 + 53806 / 27
492 + 35706 / 18
496 + 35702 / 18
496 + 53801 / 27
502 + 71894 / 36
5046 / 29 + 1837
504 + 71892 / 36
50976 / 32 + 418
53401 + 896 / 27
53406 + 891 / 27
53491 + 806 / 27
53496 + 801 / 27
53801 + 496 / 27
53806 + 491 / 27
53891 + 406 / 27
53896 + 401 / 27
56817 / 9 - 4302
586074 / 291 - 3
592 + 71804 / 36
594 + 71802 / 36
6042 / 53 + 1897
61908 / 42 + 537
62517 / 39 + 408
68901 - 527 / 34
702 + 35496 / 18
70623 / 59 + 814
706 + 35492 / 18
71502 + 894 / 36
71504 + 892 / 36
71592 + 804 / 36
71594 + 802 / 36
71802 + 594 / 36
71804 + 592 / 36
71892 + 504 / 36
71894 + 502 / 36
7234 + 10865 / 9
7235 + 10864 / 9
7243 + 10856 / 9
7246 + 10853 / 9
7253 + 10846 / 9
72531 / 9 - 6048
7256 + 10843 / 9
7264 + 10835 / 9
7265 + 10834 / 9
742051 + 8 / 369
742058 + 1 / 369
75609 / 31 - 428
76908 / 34 - 251
7834 + 10265 / 9
7835 + 10264 / 9
7843 + 10256 / 9
7846 + 10253 / 9
7853 + 10246 / 9
7856 + 10243 / 9
7864 + 10235 / 9
7865 + 10234 / 9
792 + 35406 / 18
796 + 35402 / 18
801 + 53496 / 27
802 + 71594 / 36
804 + 71592 / 36
8064 / 32 + 1759
806 + 53491 / 27
80712 / 59 + 643
87210 / 54 + 396
8 + 742051 / 369
891 + 53406 / 27
892 + 71504 / 36
894 + 71502 / 36
896 + 53401 / 27
90127 + 368 / 45
90128 + 367 / 45
90167 + 328 / 45
90168 + 327 / 45
90327 + 168 / 45
90328 + 167 / 45
90367 + 128 / 45
90368 + 127 / 45
907863 / 451 - 2

 Posted by Charlie on 2011-01-01 14:45:42

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