Solutions by everydaycalculation.com
824 - 524 is 18.
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Related: 16/24-5/24 8/24-10/24 8/48-5/24 8/24-5/48 8/24-15/24 8/72-5/24 8/24-5/72 40/24-5/24 8/24-25/24 56/24-5/24 8/24-35/24
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