Solutions by everydaycalculation.com
1028 - 728 is 328.
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Related: 20/28-7/28 10/28-14/28 10/56-7/28 10/28-7/56 30/28-7/28 10/28-21/28 10/84-7/28 10/28-7/84 50/28-7/28 10/28-35/28 70/28-7/28 10/28-49/28
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