Solutions by everydaycalculation.com
1242 - 842 is 221.
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Related: 24/42-8/42 12/42-16/42 12/84-8/42 12/42-8/84 36/42-8/42 12/42-24/42 60/42-8/42 12/42-40/42 84/42-8/42 12/42-56/42
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