Click the [b]digit buttons [/b]to insert numbers as elements of the [b]union[/b] of the given sets.[br][br]Once you have completed your subset, click "[b]Submit Answer[/b]" to check your work. If you would like to create another subset from the current given set, click "[b]Reset Answer[/b]" to reset your input.[br][br]To work with a new given set, click the "[b]Generate New Set[/b]" button.