All 100 targets have a solution.
\(1 = \frac{ 24 }{ 3 } - 7 \)
\(2 = \frac{ \frac{ 42 }{ 3 } }{ 7 }\)
\(3 = \frac{ 24 - 3 }{ 7 }\)
\(4 = \sqrt{43 - 27 }\)
\(5 = 42 - 37 \)
\(6 = \frac{ 24 }{ 7 - 3 }\)
\(7 = 34 - 27 \)
\(8 = 72 - 4^{3 }\)
\(9 = \frac{ 42 }{ 7 } + 3 \)
\(10 = \frac{ 34 }{ 2 } - 7 \)
\(11 = \sqrt{324} - 7 \)
\(12 = 23 - 4 - 7 \)
\(13 = 37 - 24 \)
\(14 = 24 - 3 - 7 \)
\(15 = 47 - 32 \)
\(16 = 43 - 27 \)
\(17 = 23 - ( 7 - 4 )!\)
\(18 = \frac{ 42 \cdot 3 }{ 7 }\)
\(19 = 27 - \sqrt{4}^{3 }\)
\(20 = 23 + 4 - 7 \)
\(21 = 32 - 4 - 7 \)
\(22 = \frac{ 47 - 3 }{ 2 }\)
\(23 = 24 + 3! - 7 \)
\(24 = 47 - 23 \)
\(25 = \sqrt{324} + 7 \)
\(26 = 23 - 4 + 7 \)
\(27 = ( 4 - 3 ) \cdot 27 \)
\(28 = 24 - 3 + 7 \)
\(29 = 72 - 43 \)
\(30 = ( 2 \cdot 7 - 4 ) \cdot 3 \)
\(31 = 73 - 42 \)
\(32 = 42 - 3 - 7 \)
\(33 = \frac{ 27 }{ 3 } + 4 !\)
\(34 = 23 + 4 + 7 \)
\(35 = 32 - 4 + 7 \)
\(36 = \frac{ 27 }{ 3 } \cdot 4 \)
\(37 = 4^{3} - 27 \)
\(38 = 72 - 34 \)
\(39 = 3 \cdot 4 + 27 \)
\(40 = \frac{ 74 }{ 2 } + 3 \)
\(41 = 47 - 2 \cdot 3 \)
\(42 = 74 - 32 \)
\(43 = 32 + 4 + 7 \)
\(44 = \sqrt{7 - 3} + 42 \)
\(45 = 3 \cdot 7 + 24 \)
\(46 = 42 - 3 + 7 \)
\(47 = ( 3 - 2 ) \cdot 47 \)
\(48 = 2 \cdot 7 + 34 \)
\(49 = 73 - 24 \)
\(50 = ( 32 - 7 ) \cdot \sqrt{4 }\)
\(51 = 74 - 23 \)
\(52 = 42 + 3 + 7 \)
\(53 = 2^{4} + 37 \)
\(54 = 3^{4} - 27 \)
\(55 = 2^{3} + 47 \)
\(56 = \frac{ 24 }{ 3 } \cdot 7 \)
\(57 = 2 \cdot 7 + 43 \)
\(58 = 2 \cdot 4! + 3 + 7 \)
\(59 = 37 - 2 + 4 !\)
\(60 = 4 \cdot 7 + 32 \)
\(61 = 24 + 37 \)
\(62 = 72 - 3! - 4 \)
\(63 = 3 \cdot 7 + 42 \)
\(64 = ( 23 - 7 ) \cdot 4 \)
\(65 = 24 \cdot 3 - 7 \)
\(66 = ( 37 - 4 ) \cdot 2 \)
\(67 = 73 - 2 - 4 \)
\(68 = 74 - 2 \cdot 3 \)
\(69 = ( 7 - 4 ) \cdot 23 \)
\(70 = 23 + 47 \)
\(71 = 72 + 3 - 4 \)
\(72 = ( 43 - 7 ) \cdot 2 \)
\(73 = 72 - 3 + 4 \)
\(74 = \frac{ 37 \cdot 4 }{ 2 }\)
\(75 = 34 \cdot 2 + 7 \)
\(76 = 37 \cdot 2 + \sqrt{4 }\)
\(77 = 27 \cdot 3 - 4 \)
\(78 = 37 \cdot 2 + 4 \)
\(79 = 32 + 47 \)
\(80 = 2 \cdot 3 + 74 \)
\(81 = 2 \cdot 4 + 73 \)
\(82 = ( 34 + 7 ) \cdot 2 \)
\(83 = 7^{2} + 34 \)
\(84 = 3 \cdot 4 + 72 \)
\(85 = 23 \cdot 4 - 7 \)
\(86 = ( 7 - 2 )! - 34 \)
\(87 = ( 27 + \sqrt{4} ) \cdot 3 \)
\(88 = ( 47 - 3 ) \cdot 2 \)
\(89 = 2^{4} + 73 \)
\(90 = 3^{4} + 2 + 7 \)
\(91 = 4^{3} + 27 \)
\(92 = 7^{2} + 43 \)
\(93 = \frac{ 372 }{ 4 }\)
\(94 = 2^{7} - 34 \)
\(95 = 73 - 2 + 4 !\)
\(96 = ( 7 - 3 ) \cdot 24 \)
\(97 = 23 + 74 \)
\(98 = \frac{ 42 }{ 3 } \cdot 7 \)
\(99 = 23 \cdot 4 + 7 \)
\(100 = ( 32 - 7 ) \cdot 4 \)