Solutions by everydaycalculation.com
1012 - 312 is 712.
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Related: 20/12-3/12 10/12-6/12 10/24-3/12 10/12-3/24 30/12-3/12 10/12-9/12 10/36-3/12 10/12-3/36 50/12-3/12 10/12-15/12 10/60-3/12 10/12-3/60 70/12-3/12 10/12-21/12 10/84-3/12 10/12-3/84
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