A large ship transported goods 6 times, and a small ship transported goods 15 times. The large ship transported 50 tons each time, and the small ship transported 13 tons each time. How many tons of goods were transported by the large ship and the small ship?
一艘大船运了6次货，一艘小船运了15次货，大船每次运50吨，小船每次运13吨，大船和小船一共运了多少吨货？
<gadget id="calculator">50 * 6</gadget>
<output>300</output>

<gadget id="calculator">13 * 15</gadget>
<output>195</output>

<gadget id="calculator">300 + 195</gadget>
<output>495</output>

<result>495</result>