Solutions by everydaycalculation.com
2128 - 828 is 1328.
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Related: 42/28-8/28 21/28-16/28 21/56-8/28 21/28-8/56 63/28-8/28 21/28-24/28 21/84-8/28 21/28-8/84 21/28-40/28 21/28-56/28
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