A bucket of water with the bucket weighs 18.6 kg, and half of the water with the bucket weighs 9.6 kg. How much does this bucket weigh?
一桶水连桶重18.6千克，倒掉一半水连桶还重9.6千克．这个水桶重多少千克？
<gadget id="calculator">18.6 - 9.6</gadget>
<output>9</output>

<gadget id="calculator">9 * 2</gadget>
<output>18</output>

<gadget id="calculator">18.6 - 18</gadget>
<output>0.6</output>

<result>0.6</result>