Solutions by everydaycalculation.com
1215 - 215 is 23.
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Related: 24/15-2/15 12/15-4/15 12/30-2/15 12/15-2/30 36/15-2/15 12/15-6/15 12/45-2/15 12/15-2/45 60/15-2/15 12/15-10/15 12/75-2/15 12/15-2/75 84/15-2/15 12/15-14/15
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