Solutions by everydaycalculation.com
1040 - 240 is 15.
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Related: 20/40-2/40 10/40-4/40 10/80-2/40 10/40-2/80 30/40-2/40 10/40-6/40 50/40-2/40 10/40-10/40 70/40-2/40 10/40-14/40
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