Solutions by everydaycalculation.com
1028 - 628 is 17.
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Related: 20/28-6/28 10/28-12/28 10/56-6/28 10/28-6/56 30/28-6/28 10/28-18/28 10/84-6/28 10/28-6/84 50/28-6/28 10/28-30/28 70/28-6/28 10/28-42/28
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