86 of 100 targets have a solution.
\(1 = 7 - \frac{ 12 }{ 2 }\)
\(2 = \frac{ 12 + 2 }{ 7 }\)
\(3 = 12 - 2 - 7 \)
\(4 = \frac{ 12 }{ \sqrt{2 + 7 } }\)
\(5 = 22 - 17 \)
\(6 = \frac{ 72 }{ 12 }\)
\(7 = \sqrt{71 - 22 }\)
\(8 = 2^{\frac{ 21 }{ 7 }}\)
\(9 = ( \frac{ 21 }{ 7 } )^{2 }\)
\(10 = ( 12 - 7 ) \cdot 2 \)
\(11 = \sqrt{72 \cdot 2} - 1 \)
\(12 = 21 - 2 - 7 \)
\(13 = \frac{ 12 }{ 2 } + 7 \)
\(14 = \frac{ 21 + 7 }{ 2 }\)
\(15 = 27 - 12 \)
\(16 = 17 - \frac{ 2 }{ 2 }\)
\(17 = 12 - 2 + 7 \)
\(18 = \sqrt{12 \cdot 27 }\)
\(19 = \sqrt{12^{2}} + 7 \)
\(20 = ( 1 + 2 + 7 ) \cdot 2 \)
\(21 = 12 + 2 + 7 \)
\(22 = 1^{7} \cdot 22 \)
\(23 = 1^{7} + 22 \)
\(24 = 27 - 1 - 2 \)
\(25 = ( 12 - 7 )^{2 }\)
\(26 = 2 \cdot 7 + 12 \)
\(27 = ( 2 - 1 ) \cdot 27 \)
\(28 = ( 21 - 7 ) \cdot 2 \)
\(29 = 22 \cdot 1 + 7 \)
\(30 = ( 17 - 2 ) \cdot 2 \)
\(31 = 12 \cdot 2 + 7 \)
\(32 = 2^{12 - 7 }\)
\(33 = ( 1 + 2 )! + 27 \)
\(34 = \sqrt{17^{2}} \cdot 2 \)
\(35 = 21 \cdot 2 - 7 \)
\(36 = 17 \cdot 2 + 2 \)
\(37 = 7^{2} - 12 \)
\(38 = ( 12 + 7 ) \cdot 2 \)
\(39 = 12 + 27 \)
\(40 = ( 1 + 2 )! \cdot 7 - 2 \)
\(41 = ( 2 + 2 )! + 17 \)
\(42 = \frac{ 12 }{ 2 } \cdot 7 \)
\(43 = ( 1 + 2 )!^{2} + 7 \)
\(44 = ( 1 + 2 )! \cdot 7 + 2 \)
\(45 = ?\)
\(46 = 7^{2} - 1 - 2 \)
\(47 = 71 - ( 2 + 2 )!\)
\(48 = 21 + 27 \)
\(49 = 71 - 22 \)
\(50 = 7^{2} - 1 + 2 \)
\(51 = 72 - 21 \)
\(52 = ( 27 - 1 ) \cdot 2 \)
\(53 = 27 \cdot 2 - 1 \)
\(54 = 27 \cdot 1 \cdot 2 \)
\(55 = 27 \cdot 2 + 1 \)
\(56 = ( 21 + 7 ) \cdot 2 \)
\(57 = \sqrt{2^{12}} - 7 \)
\(58 = ?\)
\(59 = \frac{ ( 7 - 2 )! }{ 2 } - 1 \)
\(60 = 72 - 12 \)
\(61 = 7^{2} + 12 \)
\(62 = 2^{7 - 1} - 2 \)
\(63 = \frac{ 21^{2} }{ 7 }\)
\(64 = 2^{( \frac{ 21 }{ 7 } )!}\)
\(65 = \frac{ 2^{7} }{ 2 } + 1 \)
\(66 = 72 - ( 1 + 2 )!\)
\(67 = 71 - 2 - 2 \)
\(68 = 17 \cdot 2 \cdot 2 \)
\(69 = 72 - 1 - 2 \)
\(70 = ( 12 - 2 ) \cdot 7 \)
\(71 = 71 - 2 + 2 \)
\(72 = \frac{ 2 }{ 2 } + 71 \)
\(73 = 72 - 1 + 2 \)
\(74 = 72 \cdot 1 + 2 \)
\(75 = 71 + 2 + 2 \)
\(76 = ?\)
\(77 = ?\)
\(78 = ( 1 + 2 )! + 72 \)
\(79 = ?\)
\(80 = ( 2 + 7 )^{2} - 1 \)
\(81 = ( 1 + 2 ) \cdot 27 \)
\(82 = 12 \cdot 7 - 2 \)
\(83 = ?\)
\(84 = 12 + 72 \)
\(85 = ?\)
\(86 = \frac{ 172 }{ 2 }\)
\(87 = ?\)
\(88 = ?\)
\(89 = ?\)
\(90 = ?\)
\(91 = ?\)
\(92 = ?\)
\(93 = 21 + 72 \)
\(94 = ?\)
\(95 = ( 2 + 2 )! + 71 \)
\(96 = ( 7^{2} - 1 ) \cdot 2 \)
\(97 = 7^{2} \cdot 2 - 1 \)
\(98 = ( 12 + 2 ) \cdot 7 \)
\(99 = ( 7 - 2 )! - 21 \)
\(100 = ( 1 + 2 + 7 )^{2 }\)