Solutions by everydaycalculation.com
942 - 1642 is -16.
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Related: 18/42-16/42 9/42-32/42 9/84-16/42 9/42-16/84 27/42-16/42 9/42-48/42 45/42-16/42 9/42-80/42 63/42-16/42
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