Solutions by everydaycalculation.com
1030 - 2530 is -12.
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Related: 20/30-25/30 10/30-50/30 10/60-25/30 10/30-25/60 10/30-75/30 10/90-25/30 10/30-25/90 50/30-25/30 70/30-25/30
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