What is the sum of 2.57 plus the product of 6.9 and 4.8?
2.57加上6.9与4.8的积，和是多少？
<gadget id="calculator">6.9 * 4.8</gadget>
<output>33.12</output>

<gadget id="calculator">2.57 + 33.12</gadget>
<output>35.69</output>

<result>35.69</result>