The toy factory produced a batch of balls, and transported away 24 boxes of white balls and 12 boxes of colored balls. If each box contained 9 balls, how many balls were transported in total?
玩具厂生产一批皮球，运走了24箱白皮球和12箱花皮球，若是每箱9个皮球，一共运走了多少个皮球？
<gadget id="calculator">24 + 12</gadget>
<output>36</output>

<gadget id="calculator">36 * 9</gadget>
<output>324</output>

<result>324</result>