Solutions by everydaycalculation.com
835 - 1535 is -15.
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Related: 16/35-15/35 8/35-30/35 8/70-15/35 8/35-15/70 24/35-15/35 8/35-45/35 40/35-15/35 8/35-75/35 56/35-15/35
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