Solutions by everydaycalculation.com
115 - 35 is -815.
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Related: 2/15-3/5 1/15-6/5 1/30-3/5 1/15-3/10 3/15-3/5 1/15-9/5 1/45-3/5 1/15-3/15 5/15-3/5 1/15-15/5 1/75-3/5 1/15-3/25 7/15-3/5 1/15-21/5 1/15-3/35
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