Solutions by everydaycalculation.com
742 - 242 is 542.
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Related: 14/42-2/42 7/42-4/42 7/84-2/42 7/42-2/84 21/42-2/42 7/42-6/42 35/42-2/42 7/42-10/42 49/42-2/42 7/42-14/42
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