On the hour hand dial, what is the angle between the hour and minute hands at 1:45?
要时针盘面上，1时45分的时针和分针之间的夹角是多少度．
<gadget id="calculator">9 * 30</gadget>
<output>270</output>

<gadget id="calculator">45 * 0.5</gadget>
<output>22.5</output>

<gadget id="calculator">22.5 + 30</gadget>
<output>52.5</output>

<gadget id="calculator">270 - 52.5</gadget>
<output>217.5</output>

<result>217.5</result>