ABCDEFGHIJKLMNOPQRSTUVWXYZ
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Take the digits 5, 4, 3, 2 and 1, in exactly that order. Using those digits and the four arithmetic signs (+, -, * and / ), create as many of the listed numbers as possible. You can group digits with parentheses.
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1 =5 4 3 2 111 =5 4 3 2 121 =5 4 3 2 131 =5 4 3 2 1
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2 =5 4 3 2 112 =5 4 3 2 122 =5 4 3 2 132 =5 4 3 2 1
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3 =5 4 3 2 113 =5 4 3 2 123 =5 4 3 2 133 =5 4 3 2 1
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4 =5 4 3 2 114 =5 4 3 2 124 =5 4 3 2 134 =5 4 3 2 1
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5 =5 4 3 2 115 =5 4 3 2 125 =5 4 3 2 135 =5 4 3 2 1
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6 =5 4 3 2 116 =5 4 3 2 126 =5 4 3 2 136 =5 4 3 2 1
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7 =5 4 3 2 117 =5 4 3 2 127 =5 4 3 2 137 =5 4 3 2 1
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8 =5 4 3 2 118 =5 4 3 2 128 =5 4 3 2 138 =5 4 3 2 1
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9 =5 4 3 2 119 =5 4 3 2 129 =5 4 3 2 139 =5 4 3 2 1
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10 =5 4 3 2 120 =5 4 3 2 130 =5 4 3 2 140 =5 4 3 2 1
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