Solutions by everydaycalculation.com
1st number: 1 15/20, 2nd number: 10/20
3520 - 1020 is 54.
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Related: 70/20-10/20 35/40-10/20 35/20-10/40 35/20-30/20 35/60-10/20 35/20-10/60 35/20-50/20 35/20-70/20
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