What is the product of the difference of 5 minus 0.8 times the sum of 2.2 plus 0.3?
5减去0.8的差乘2.2加上0.3的和，积是多少？
<gadget id="calculator">5 - 0.8</gadget>
<output>4.2</output>

<gadget id="calculator">2.2 + 0.3</gadget>
<output>2.5</output>

<gadget id="calculator">4.2 * 2.5</gadget>
<output>10.5</output>

<result>10.5</result>