The price per kilogram of pork is 11 yuan. How much did my mother buy for 1.8 kilograms of pork?
每千克猪肉的售价是11元，妈妈买了1.8千克猪肉，用去多少元？
<gadget id="calculator">1.8 * 11</gadget>
<output>19.8</output>

<result>19.8</result>