During the "New Year's Day" period, the students bought 120 yellow balloons to decorate the classroom. The number of red balloons they bought was five times that of yellow balloons. How many red balloons did they buy?
"元旦"期间，同学们为了装扮教室买来了120个黄气球，买来的红气球的个数是黄气球的5倍，买来红气球多少个？
<gadget id="calculator">120 * 5</gadget>
<output>600</output>

<result>600</result>