Solutions by everydaycalculation.com
1224 - 924 is 18.
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Related: 12/24-18/24 12/48-9/24 12/24-9/48 36/24-9/24 12/24-27/24 12/72-9/24 12/24-9/72 60/24-9/24 12/24-45/24 84/24-9/24 12/24-63/24
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