Solutions by everydaycalculation.com
742 - 1842 is -1142.
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Related: 14/42-18/42 7/42-36/42 7/84-18/42 7/42-18/84 21/42-18/42 7/42-54/42 35/42-18/42 7/42-90/42 49/42-18/42
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