Solutions by everydaycalculation.com
518 - 25 is -1190.
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Related: 10/18-2/5 5/18-4/5 5/36-2/5 5/18-2/10 15/18-2/5 5/18-6/5 5/54-2/5 5/18-2/15 25/18-2/5 5/18-10/5 5/90-2/5 5/18-2/25 35/18-2/5 5/18-14/5 5/18-2/35
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