Wang Ming is 145 cm tall, and the door of the classroom is 2 meters high. How many centimeters is Wang Ming shorter than the door?
王明身高145厘米，教室的门高2米，王明比门矮多少厘米？
<gadget id="calculator">2 * 100</gadget>
<output>200</output>

<gadget id="calculator">200 - 145</gadget>
<output>55</output>

<result>55</result>