Solutions by everydaycalculation.com
815 - 215 is 25.
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Related: 16/15-2/15 8/15-4/15 8/30-2/15 8/15-2/30 24/15-2/15 8/15-6/15 8/45-2/15 8/15-2/45 40/15-2/15 8/15-10/15 8/75-2/15 8/15-2/75 56/15-2/15 8/15-14/15
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