Solutions by everydaycalculation.com
1518 - 818 is 718.
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Related: 30/18-8/18 15/18-16/18 15/36-8/18 15/18-8/36 45/18-8/18 15/18-24/18 15/54-8/18 15/18-8/54 75/18-8/18 15/18-40/18 15/90-8/18 15/18-8/90 15/18-56/18
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