Solutions by everydaycalculation.com
1030 - 2130 is -1130.
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Related: 20/30-21/30 10/30-42/30 10/60-21/30 10/30-21/60 10/30-63/30 10/90-21/30 10/30-21/90 50/30-21/30 70/30-21/30
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