A water tower is 30 meters high, and a TV tower is 12 times as high as this water tower. How much taller is the television tower than the water tower?
一座水塔高30米，一座电视塔的高度是这座水塔的12倍．电视塔比水塔高多少米？
<gadget id="calculator">30 * 12</gadget>
<output>360</output>

<gadget id="calculator">360 - 30</gadget>
<output>330</output>

<result>330</result>