88 of 100 targets have a solution.
\(1 = 72 - 71 \)
\(2 = 7 - ( 12 - 7 )\)
\(3 = 17 - 2 \cdot 7 \)
\(4 = 7 - \frac{ 21 }{ 7 }\)
\(5 = \frac{ 17 - 7 }{ 2 }\)
\(6 = 7 - 1^{27 }\)
\(7 = 21 - 7 - 7 \)
\(8 = 17 - 2 - 7 \)
\(9 = \frac{ 72 }{ 1 + 7 }\)
\(10 = 27 - 17 \)
\(11 = 12 - \frac{ 7 }{ 7 }\)
\(12 = 12 - 7 + 7 \)
\(13 = \frac{ 7 }{ 7 } + 12 \)
\(14 = 17 - \sqrt{2 + 7 }\)
\(15 = 2 - 1 + 7 + 7 \)
\(16 = \sqrt{71 - 7} \cdot 2 \)
\(17 = 1 + 2 + 7 + 7 \)
\(18 = ( 7 - 1 ) \cdot \sqrt{2 + 7 }\)
\(19 = 27 - 1 - 7 \)
\(20 = ( 17 - 7 ) \cdot 2 \)
\(21 = \frac{ 21 }{ 7 } \cdot 7 \)
\(22 = 17 - 2 + 7 \)
\(23 = ( 1 + 7 ) \cdot 2 + 7 \)
\(24 = \sqrt{17^{2}} + 7 \)
\(25 = \frac{ 7 \cdot 7 + 1 }{ 2 }\)
\(26 = 12 + 7 + 7 \)
\(27 = 17 \cdot 2 - 7 \)
\(28 = 7 \cdot 7 - 21 \)
\(29 = ( 7 - 1 )^{2} - 7 \)
\(30 = ( 1 + 7 + 7 ) \cdot 2 \)
\(31 = \frac{ 217 }{ 7 }\)
\(32 = 7^{2} - 17 \)
\(33 = 27 - 1 + 7 \)
\(34 = 27 \cdot 1 + 7 \)
\(35 = ( 12 - 7 ) \cdot 7 \)
\(36 = ( 7 - 1^{7} )^{2 }\)
\(37 = 7 \cdot 7 - 12 \)
\(38 = \frac{ 77 - 1 }{ 2 }\)
\(39 = \frac{ 71 + 7 }{ 2 }\)
\(40 = ( 7 - 1 ) \cdot 7 - 2 \)
\(41 = 17 \cdot 2 + 7 \)
\(42 = ( \frac{ 21 }{ 7 } )! \cdot 7 \)
\(43 = ( 7 - 1 )^{2} + 7 \)
\(44 = 17 + 27 \)
\(45 = ?\)
\(46 = 7 \cdot 7 - 1 - 2 \)
\(47 = 1 \cdot 7 \cdot 7 - 2 \)
\(48 = ( 17 + 7 ) \cdot 2 \)
\(49 = ( 7 - 2 )! - 71 \)
\(50 = 7 \cdot 7 - 1 + 2 \)
\(51 = \sqrt{2 + 7} \cdot 17 \)
\(52 = 7 \cdot 7 + 1 + 2 \)
\(53 = ?\)
\(54 = ( 1 + 7 ) \cdot 7 - 2 \)
\(55 = 72 - 17 \)
\(56 = 77 - 21 \)
\(57 = 71 - 2 \cdot 7 \)
\(58 = ( 1 + 7 ) \cdot 7 + 2 \)
\(59 = ?\)
\(60 = \frac{ 7! }{ 12 \cdot 7 }\)
\(61 = 7 \cdot 7 + 12 \)
\(62 = 71 - 2 - 7 \)
\(63 = ( 1 \cdot 2 + 7 ) \cdot 7 \)
\(64 = 72 - 1 - 7 \)
\(65 = 77 - 12 \)
\(66 = 7^{2} + 17 \)
\(67 = ?\)
\(68 = 71 - \sqrt{2 + 7 }\)
\(69 = \frac{ 7! }{ 72 } - 1 \)
\(70 = 7 \cdot 7 + 21 \)
\(71 = 72 - 1^{7 }\)
\(72 = 1^{7} \cdot 72 \)
\(73 = 1^{7} + 72 \)
\(74 = 77 - 1 - 2 \)
\(75 = 77 \cdot 1 - 2 \)
\(76 = 71 - 2 + 7 \)
\(77 = 12 \cdot 7 - 7 \)
\(78 = 72 - 1 + 7 \)
\(79 = 72 \cdot 1 + 7 \)
\(80 = 71 + 2 + 7 \)
\(81 = \sqrt{\sqrt{2 + 7}^{1 + 7 }}\)
\(82 = ?\)
\(83 = ( 1 + 2 )! + 77 \)
\(84 = \sqrt{7 \cdot 7} \cdot 12 \)
\(85 = ( 7 - 2 ) \cdot 17 \)
\(86 = ?\)
\(87 = ?\)
\(88 = ?\)
\(89 = 12 + 77 \)
\(90 = \frac{ \sqrt{2 + 7}!! }{ 1 + 7 }\)
\(91 = 12 \cdot 7 + 7 \)
\(92 = ?\)
\(93 = ?\)
\(94 = ?\)
\(95 = ?\)
\(96 = ( 7 \cdot 7 - 1 ) \cdot 2 \)
\(97 = 2 \cdot 7 \cdot 7 - 1 \)
\(98 = 21 + 77 \)
\(99 = 2 \cdot 7 \cdot 7 + 1 \)
\(100 = ( 17 - 7 )^{2 }\)