Solutions by everydaycalculation.com
412 - 512 is -112.
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Related: 8/12-5/12 4/12-10/12 4/24-5/12 4/12-5/24 4/12-15/12 4/36-5/12 4/12-5/36 20/12-5/12 4/12-25/12 4/60-5/12 4/12-5/60 28/12-5/12 4/12-35/12 4/84-5/12 4/12-5/84
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