Solutions by everydaycalculation.com
1630 - 530 is 1130.
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Related: 32/30-5/30 16/30-10/30 16/60-5/30 16/30-5/60 48/30-5/30 16/30-15/30 16/90-5/30 16/30-5/90 80/30-5/30 16/30-25/30 16/30-35/30
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