A bucket of water together with the bucket weighs 9.2 kilograms. After pouring half of it, the bucket still weighs 5.6 kilograms. How much does the bucket weigh?
一桶水连桶共重9.2千克，倒去一半后，连桶还重5.6千克，问桶重多少千克？
<gadget id="calculator">9.2 - 5.6</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 * 2</gadget>
<output>7.2</output>

<gadget id="calculator">9.2 - 7.2</gadget>
<output>2</output>

<result>2</result>