At 9:20 am, what is the angle between the hour hand and the minute hand?
在上午9点20分时，时针与分针的夹角是多少．
<gadget id="calculator">9 * 30</gadget>
<output>270</output>

<gadget id="calculator">20 * 6</gadget>
<output>120</output>

<gadget id="calculator">270 - 120</gadget>
<output>150</output>

<gadget id="calculator">20 * 0.5</gadget>
<output>10</output>

<gadget id="calculator">150 + 10</gadget>
<output>160</output>

<result>160</result>