Solutions by everydaycalculation.com
2130 - 1830 is 110.
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Related: 42/30-18/30 21/30-36/30 21/60-18/30 21/30-18/60 63/30-18/30 21/30-54/30 21/90-18/30 21/30-18/90 21/30-90/30
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