Solutions by everydaycalculation.com
824 - 424 is 16.
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Related: 16/24-4/24 8/24-8/24 8/48-4/24 8/24-4/48 8/24-12/24 8/72-4/24 8/24-4/72 40/24-4/24 8/24-20/24 56/24-4/24 8/24-28/24
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