Uncle Wang originally planned to assemble 450 bicycles in April, but actually assembled 17 bicycles a day. How many more bicycles did Uncle Wang actually assemble in April than planned?
王叔叔原计划四月份装配自行车450辆，实际每天装配了17辆，王叔叔四月份实际比计划多装配了多少辆？
<gadget id="calculator">17 * 30</gadget>
<output>510</output>

<gadget id="calculator">510 - 450</gadget>
<output>60</output>

<result>60</result>