Xiaohua swims in a 50-meter-long swimming pool. Xiaohua swims 6 back and forth and then swims 15 meters to land. How many meters did he swim in total?
小华在长50米游泳池里游泳，小华游6个来回后又游了15米上岸，他一共游了多少米？
<gadget id="calculator">50 * 2 * 6</gadget>
<output>600</output>

<gadget id="calculator">600 + 15</gadget>
<output>615</output>

<result>615</result>