All 100 targets have a solution.
\(1 = ( 149 \cdot 0 )!\)
\(2 = \frac{ 10 }{ 9 - 4 }\)
\(3 = 10 - \sqrt{49 }\)
\(4 = ( 10 - 9 ) \cdot 4 \)
\(5 = 10 + 4 - 9 \)
\(6 = ( 10 - \sqrt{49 } )!\)
\(7 = \sqrt{90 - 41 }\)
\(8 = 9 - 14^{0 }\)
\(9 = 14 \cdot 0 + 9 \)
\(10 = 14^{0} + 9 \)
\(11 = 10 + 4 - \sqrt{9 }\)
\(12 = \frac{ ( 9 - 4 )! }{ 10 }\)
\(13 = 14 - 9^{0 }\)
\(14 = 0 \cdot 9 + 14 \)
\(15 = 10 - 4 + 9 \)
\(16 = \sqrt{4 \cdot 9} + 10 \)
\(17 = 10 + \sqrt{49 }\)
\(18 = 19 - 4^{0 }\)
\(19 = 0 \cdot 4 + 19 \)
\(20 = 4^{0} + 19 \)
\(21 = 40 - 19 \)
\(22 = 4 \cdot \sqrt{9} + 10 \)
\(23 = 10 + 4 + 9 \)
\(24 = ( ( 10 - 9 ) \cdot 4 )!\)
\(25 = 10 + 4! - 9 \)
\(26 = 4 \cdot 9 - 10 \)
\(27 = ( 4 - ( 0 + 1 ) ) \cdot 9 \)
\(28 = ( 10 - \sqrt{9} ) \cdot 4 \)
\(29 = 10 \cdot \sqrt{4} + 9 \)
\(30 = 40 - 1 - 9 \)
\(31 = 10 \cdot 4 - 9 \)
\(32 = 40 + 1 - 9 \)
\(33 = 41 + 0! - 9 \)
\(34 = 10 \cdot \sqrt{9} + 4 \)
\(35 = ( 0 + 4 ) \cdot 9 - 1 \)
\(36 = 40 - 1 - \sqrt{9 }\)
\(37 = 10 \cdot 4 - \sqrt{9 }\)
\(38 = ( 10 + 9 ) \cdot \sqrt{4 }\)
\(39 = 49 - 10 \)
\(40 = 1^{9} \cdot 40 \)
\(41 = 1^{9} + 40 \)
\(42 = 9^{0} + 41 \)
\(43 = 10 + 4! + 9 \)
\(44 = 40 + 1 + \sqrt{9 }\)
\(45 = \frac{ 10 }{ \sqrt{4} } \cdot 9 \)
\(46 = 4 \cdot 9 + 10 \)
\(47 = 49 - 0! - 1 \)
\(48 = 40 - 1 + 9 \)
\(49 = 90 - 41 \)
\(50 = ( 9 - 4 ) \cdot 10 \)
\(51 = 91 - 40 \)
\(52 = ( 10 + \sqrt{9} ) \cdot 4 \)
\(53 = ( 4 - 0! )! \cdot 9 - 1 \)
\(54 = ( 10 - 4 ) \cdot 9 \)
\(55 = ( 4 - 0! )! \cdot 9 + 1 \)
\(56 = 10 \cdot \sqrt{9}! - 4 \)
\(57 = ( 4 - 0! ) \cdot 19 \)
\(58 = 10 \cdot \sqrt{9}! - \sqrt{4 }\)
\(59 = 10 + 49 \)
\(60 = \sqrt{4 \cdot 9} \cdot 10 \)
\(61 = \sqrt{\sqrt{( 0! + 1 )^{4!}}} - \sqrt{9 }\)
\(62 = 4! \cdot \sqrt{9} - 10 \)
\(63 = ( 0 + 4 )^{\sqrt{9}} - 1 \)
\(64 = ( 10 + \sqrt{9}! ) \cdot 4 \)
\(65 = 90 - 1 - 4 !\)
\(66 = 10 \cdot 9 - 4 !\)
\(67 = 90 + 1 - 4 !\)
\(68 = 91 + 0! - 4 !\)
\(69 = ( 4! - ( 0 + 1 ) ) \cdot \sqrt{9 }\)
\(70 = 10 \cdot \sqrt{49 }\)
\(71 = 9^{\sqrt{4}} - 10 \)
\(72 = ( 10 - \sqrt{4} ) \cdot 9 \)
\(73 = ( 0 + 4 )! \cdot \sqrt{9} + 1 \)
\(74 = 4^{\sqrt{9}} + 10 \)
\(75 = 19 \cdot 4 - 0 !\)
\(76 = 90 - 14 \)
\(77 = 19 \cdot 4 + 0 !\)
\(78 = ( 14 - 0! ) \cdot \sqrt{9 }!\)
\(79 = 9^{0! + 1} - \sqrt{4 }\)
\(80 = \frac{ ( 10 - 4 )! }{ 9 }\)
\(81 = 9^{4^{0} + 1 }\)
\(82 = 4! \cdot \sqrt{9} + 10 \)
\(83 = 14 \cdot \sqrt{9}! - 0 !\)
\(84 = 94 - 10 \)
\(85 = 109 - 4 !\)
\(86 = 10 \cdot 9 - 4 \)
\(87 = 90 + 1 - 4 \)
\(88 = 10 \cdot 9 - \sqrt{4 }\)
\(89 = 90 - 1^{4 }\)
\(90 = 1^{4} \cdot 90 \)
\(91 = 1^{4} + 90 \)
\(92 = 4^{0} + 91 \)
\(93 = 90 - 1 + 4 \)
\(94 = 10 \cdot 9 + 4 \)
\(95 = 104 - 9 \)
\(96 = ( 4 - 1 )! + 90 \)
\(97 = 10^{\sqrt{4}} - \sqrt{9 }\)
\(98 = 104 - \sqrt{9 }!\)
\(99 = ( 0! + 9 )^{\sqrt{4}} - 1 \)
\(100 = 10^{\sqrt{9}! - 4 }\)