Solutions by everydaycalculation.com
2130 - 830 is 1330.
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Related: 42/30-8/30 21/30-16/30 21/60-8/30 21/30-8/60 63/30-8/30 21/30-24/30 21/90-8/30 21/30-8/90 21/30-40/30 21/30-56/30
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