bucket of water together with the bucket weighs 9.2 kilograms. After pouring out half of the water, the bucket still weighs 5.6 kilograms. How many kilograms does the bucket weigh?
一桶水连桶共重9.2千克，倒去一半水后，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>