Solutions by everydaycalculation.com
27 - 69 is -821.
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Related: 4/7-6/9 2/7-12/9 2/14-6/9 2/7-6/18 6/7-6/9 2/7-18/9 2/21-6/9 2/7-6/27 10/7-6/9 2/7-30/9 2/35-6/9 2/7-6/45 14/7-6/9 2/7-42/9 2/49-6/9 2/7-6/63
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