Solutions by everydaycalculation.com
1030 - 530 is 16.
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Related: 20/30-5/30 10/30-10/30 10/60-5/30 10/30-5/60 10/30-15/30 10/90-5/30 10/30-5/90 50/30-5/30 10/30-25/30 70/30-5/30 10/30-35/30
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