Solutions by everydaycalculation.com
2030 - 530 is 12.
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Related: 40/30-5/30 20/30-10/30 20/60-5/30 20/30-5/60 60/30-5/30 20/30-15/30 20/90-5/30 20/30-5/90 20/30-25/30 20/30-35/30
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