There are 24 marbles in a jar. Half are blue. There are 6 red marbles. The rest of the marbles are orange. How many orange marbles are there?
There are 24/2 = <<24/2=12>>12 blue marbles.
Blue and red marbles make up 12 + 6 = <<12+6=18>>18 of the 24 marbles.
Thus, there are 24-18=<<24-18=6>>6 orange marbles.
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