Xiaohong goes to the supermarket to buy soy sauce with 10 yuan. Each bag of soy sauce is 1.3 yuan. She bought 6 bags, how much money is left?
小红用10元钱去超市买酱油，酱油每袋1.3元，她买了6袋，还剩多少钱？
<gadget id="calculator">1.3 * 6</gadget>
<output>7.8</output>

<gadget id="calculator">10 - 7.8</gadget>
<output>2.2</output>

<result>2.2</result>