Solutions by everydaycalculation.com
221 - 514 is -1142.
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Related: 4/21-5/14 2/21-10/14 2/42-5/14 2/21-5/28 6/21-5/14 2/21-15/14 2/63-5/14 2/21-5/42 10/21-5/14 2/21-25/14 2/21-5/70 14/21-5/14 2/21-35/14 2/21-5/98
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