Solutions by everydaycalculation.com
1015 - 45 is -215.
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Related: 20/15-4/5 10/15-8/5 10/30-4/5 10/15-4/10 30/15-4/5 10/15-12/5 10/45-4/5 10/15-4/15 50/15-4/5 10/15-20/5 10/75-4/5 10/15-4/25 70/15-4/5 10/15-28/5 10/15-4/35
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