Solutions by everydaycalculation.com
1st number: 1 12/20, 2nd number: 5/20
3220 - 520 is 2720.
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Related: 64/20-5/20 32/20-10/20 32/40-5/20 32/20-5/40 96/20-5/20 32/20-15/20 32/60-5/20 32/20-5/60 32/20-25/20 32/20-35/20
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