Solutions by everydaycalculation.com
942 - 1042 is -142.
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Related: 18/42-10/42 9/42-20/42 9/84-10/42 9/42-10/84 27/42-10/42 9/42-30/42 45/42-10/42 9/42-50/42 63/42-10/42 9/42-70/42
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