Xiaohong turns the hula hoop 129 times per minute, Xiaohua turns the hula hoop 800 times in 4 minutes, how many more times is Xiaohua than Xiaohong per minute.
小红每分钟转呼拉圈129圈，小华4分钟转800圈，小华每分钟比小红多多少圈．
<gadget id="calculator">800 / 4</gadget>
<output>200</output>

<gadget id="calculator">200 - 129</gadget>
<output>71</output>

<result>71</result>