How much is the sum of 5.8 and 3.2 multiplied by 13.5?
5.8与3.2的和，乘13.5，得多少？
<gadget id="calculator">5.8 + 3.2</gadget>
<output>9</output>

<gadget id="calculator">9 * 13.5</gadget>
<output>121.5</output>

<result>121.5</result>