Uncle Zhang chooses to pay 30 yuan per month for 50 hours of Internet access, and 1.5 yuan per hour for more than 50 hours. How much does Uncle Zhang need to pay for 88 hours of Internet access this month?
张叔叔选择上网缴费标准每月交30元可以上网50时，超过50时每时收1.5元，张叔叔这个月上网88时，需要交多少元上网费？
<gadget id="calculator">88 - 50</gadget>
<output>38</output>

<gadget id="calculator">38 * 1.5</gadget>
<output>57</output>

<gadget id="calculator">57 + 30</gadget>
<output>87</output>

<result>87</result>