Mom buys tomatoes and pays the salesperson 6 yuan. How much did it cost to buy tomatoes for 6 cents?
妈妈买西红柿，付给售货员6元钱．找回6角，买西红柿用了多少钱？
<gadget id="calculator">6 - 0.6</gadget>
<output>5.4</output>

<result>5.4</result>