Solutions by everydaycalculation.com
342 - 1242 is -314.
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Related: 6/42-12/42 3/42-24/42 3/84-12/42 3/42-12/84 9/42-12/42 3/42-36/42 15/42-12/42 3/42-60/42 21/42-12/42 3/42-84/42
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