Yueyue skipped 522 times in 3 minutes, and Lily jumped 504 times in 3 minutes. How many more times did Yueyue jump than Lily per minute?
月月3分钟跳绳522下，莉莉3分钟跳了504下，平均每分钟月月比莉莉多跳多少下？
<gadget id="calculator">522 / 3</gadget>
<output>174</output>

<gadget id="calculator">504 / 3</gadget>
<output>168</output>

<gadget id="calculator">174 - 168</gadget>
<output>6</output>

<result>6</result>