96 of 100 targets have a solution.
\(1 = 46^{7 - 7 }\)
\(2 = 76 - 74 \)
\(3 = 7 \cdot 7 - 46 \)
\(4 = 7 - ( 4 + 6 - 7 )\)
\(5 = 47 - 6 \cdot 7 \)
\(6 = ( 7 \cdot 7 - 46 )!\)
\(7 = 74 - 67 \)
\(8 = \sqrt{64} - 7 + 7 \)
\(9 = \frac{ 47 + 7 }{ 6 }\)
\(10 = 4 + 6 - 7 + 7 \)
\(11 = ( 7 - 6 ) \cdot 4 + 7 \)
\(12 = \frac{ 76 }{ 4 } - 7 \)
\(13 = 77 - 64 \)
\(14 = \frac{ 6 }{ 7 - 4 } \cdot 7 \)
\(15 = 64 - 7 \cdot 7 \)
\(16 = 6 - 4 + 7 + 7 \)
\(17 = \sqrt{47 \cdot 6 + 7 }\)
\(18 = \frac{ 6! }{ 47 - 7 }\)
\(19 = ( 7 - 4 )! + 6 + 7 \)
\(20 = 67 - 47 \)
\(21 = \sqrt{64 \cdot 7 - 7 }\)
\(22 = \sqrt{64} + 7 + 7 \)
\(23 = 4 \cdot 6 - \frac{ 7 }{ 7 }\)
\(24 = 4 + 6 + 7 + 7 \)
\(25 = ( 7 - 4 ) \cdot 6 + 7 \)
\(26 = \frac{ 76 }{ 4 } + 7 \)
\(27 = 747 - 6 !\)
\(28 = ( 7 - 6 ) \cdot 4 \cdot 7 \)
\(29 = 76 - 47 \)
\(30 = \frac{ 67 - 7 }{ \sqrt{4 } }\)
\(31 = 77 - 46 \)
\(32 = 46 - 7 - 7 \)
\(33 = ( 6 + 7 ) \cdot \sqrt{4} + 7 \)
\(34 = 47 - 6 - 7 \)
\(35 = ( 7 - ( 6 - 4 ) ) \cdot 7 \)
\(36 = 67 - 4! - 7 \)
\(37 = \frac{ 67 + 7 }{ \sqrt{4 } }\)
\(38 = 4 \cdot 6 + 7 + 7 \)
\(39 = 67 - 4 \cdot 7 \)
\(40 = 47 - \frac{ 7! }{ 6 ! }\)
\(41 = 7 \cdot 7 - \sqrt{64 }\)
\(42 = 7^{6 - 4} - 7 \)
\(43 = ( 7 - 4 )! \cdot 6 + 7 \)
\(44 = ( 7 - \sqrt{4} )! - 76 \)
\(45 = 46 - \frac{ 7 }{ 7 }\)
\(46 = 46 - 7 + 7 \)
\(47 = \frac{ 7 }{ 7 } + 46 \)
\(48 = 47 - 6 + 7 \)
\(49 = \sqrt{64} \cdot 7 - 7 \)
\(50 = 64 - 7 - 7 \)
\(51 = 7 \cdot 7 - 4 + 6 \)
\(52 = \sqrt{4}^{7} - 76 \)
\(53 = 77 - 4 \cdot 6 \)
\(54 = 774 - 6 !\)
\(55 = \sqrt{7^{\sqrt{4}}} \cdot 7 + 6 \)
\(56 = 67 - 4 - 7 \)
\(57 = 64 - \sqrt{7 \cdot 7 }\)
\(58 = 67 - \sqrt{4} - 7 \)
\(59 = 76 - 4! + 7 \)
\(60 = 46 + 7 + 7 \)
\(61 = 74 - 6 - 7 \)
\(62 = 67 + \sqrt{4} - 7 \)
\(63 = 64 - \frac{ 7 }{ 7 }\)
\(64 = 64 - 7 + 7 \)
\(65 = \frac{ 7 }{ 7 } + 64 \)
\(66 = \frac{ 7! - 4! }{ 76 }\)
\(67 = 77 - 4 - 6 \)
\(68 = \frac{ 476 }{ 7 }\)
\(69 = 77 - \sqrt{64 }\)
\(70 = 67 - 4 + 7 \)
\(71 = \sqrt{7 \cdot 7} + 64 \)
\(72 = 67 - \sqrt{4} + 7 \)
\(73 = 74 + 6 - 7 \)
\(74 = ( 7 - 6 ) \cdot 74 \)
\(75 = 74 - 6 + 7 \)
\(76 = 67 + \sqrt{4} + 7 \)
\(77 = \sqrt{77^{6 - 4 }}\)
\(78 = 64 + 7 + 7 \)
\(79 = 76 - 4 + 7 \)
\(80 = \frac{ 7! }{ 67 - 4 }\)
\(81 = \sqrt{4} \cdot 7 + 67 \)
\(82 = ( 7 - 4 )! + 76 \)
\(83 = ( 4 + 7 ) \cdot 7 + 6 \)
\(84 = 67 + 4! - 7 \)
\(85 = \sqrt{64} + 77 \)
\(86 = ( 7 \cdot 7 - 6 ) \cdot \sqrt{4 }\)
\(87 = 74 + 6 + 7 \)
\(88 = ( 7 + 7 ) \cdot 6 + 4 \)
\(89 = 6 \cdot 7 + 47 \)
\(90 = \sqrt{4} \cdot 7 + 76 \)
\(91 = \sqrt{4} \cdot 6 \cdot 7 + 7 \)
\(92 = 4! \cdot 7 - 76 \)
\(93 = 76 + 4! - 7 \)
\(94 = ?\)
\(95 = 7 \cdot 7 + 46 \)
\(96 = ( \sqrt{4} + 7 + 7 ) \cdot 6 \)
\(97 = ?\)
\(98 = 67 + 4! + 7 \)
\(99 = ?\)
\(100 = ?\)