Solutions by everydaycalculation.com
1st number: 1 8/10, 2nd number: 5/10
1810 - 510 is 1310.
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Related: 36/10-5/10 18/20-5/10 18/10-5/20 54/10-5/10 18/10-15/10 18/30-5/10 18/10-5/30 90/10-5/10 18/10-25/10 18/50-5/10 18/10-5/50 18/10-35/10 18/70-5/10 18/10-5/70
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