Solutions by everydaycalculation.com
424 - 1624 is -12.
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Related: 8/24-16/24 4/24-32/24 4/48-16/24 4/24-16/48 12/24-16/24 4/24-48/24 4/72-16/24 4/24-16/72 20/24-16/24 4/24-80/24 28/24-16/24
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