Vehicle A transports goods 8 times, each transporting 2.5 tons, and vehicle B transports goods 5 times, each transporting 4.5 tons. How many tons are the two trucks carrying in total?
甲车运货8次，每次运2.5吨，乙车运货5次，每次运4.5吨．两车一共运货多少吨？
<gadget id="calculator">2.5 * 8</gadget>
<output>20</output>

<gadget id="calculator">4.5 * 5</gadget>
<output>22.5</output>

<gadget id="calculator">20 + 22.5</gadget>
<output>42.5</output>

<result>42.5</result>