Question: Select from the drop-down menus to correctly identify whether the given operation is closed or not closed with respect to each set of numbers. Real

Select from the drop-down menus to correctly identify whether the given operation is closed or not closed with respect to each set of numbers. Real numbers are Choose... under multiplication. Irrational numbers are Choose... under division. Integers are Choose... under subtraction. Positive rational numbers are Choose... under addition

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