Solutions by everydaycalculation.com
128 - 212 is -1184.
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Related: 2/28-2/12 1/28-4/12 1/56-2/12 1/28-2/24 3/28-2/12 1/28-6/12 1/84-2/12 1/28-2/36 5/28-2/12 1/28-10/12 1/28-2/60 7/28-2/12 1/28-14/12 1/28-2/84
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