Solutions by everydaycalculation.com
1028 - 512 is -584.
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Related: 20/28-5/12 10/28-10/12 10/56-5/12 10/28-5/24 30/28-5/12 10/28-15/12 10/84-5/12 10/28-5/36 50/28-5/12 10/28-25/12 10/28-5/60 70/28-5/12 10/28-35/12 10/28-5/84
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