Miercuri, 14 iul 2010 18:44
[#]
ixirimdi

RE: Asa e ! Problema era gandita in corelatie cu semne si linii,
anyway ..., pentru colectionari pun aici toate variantele gasite:
1 + 2 + 3 + 4 + 5 + 6 + 7 + (8 × 9) = 100 ( 9 .. 18)
(1 × 2) - 3 - 4 - 5 + (6 × 7) + (8 × 9) = 100 (12 .. 20)
1 + (2 × 3) + (4 × 5) - 6 + 7 + (8 × 9) = 100 (11 .. 21)
(1 + 2 - 3 - 4)(5 - 6 - 7 - 8 - 9) = 100 ( 9 .. 12)
1 + (2 × 3) + 4 + 5 + 67 + 8 + 9 = 100 (8 .. 16)
(1 × 2) + 34 + 56 + 7 - 8 + 9 = 100 (7 .. 13)
12 + 3 - 4 + 5 + 67 + 8 + 9 = 100 (6 .. 11)
123 - 4 - 5 - 6 - 7 + 8 - 9 = 100 (6 .. 7)
123 + 4 - 5 + 67 - 8 - 9 = 100 (4 .. 6)
123 + 45 - 67 + 8 - 9 = 100 (4 .. 6)
123 - 45 - 67 + 89 = 100 (3 .. 4)