At 8:30, what is the smaller angle between the hour hand and the target?
8：30时，时针与方针所夹的较小角是多少度．
<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">15 + 60</gadget>
<output>75</output>

<result>75</result>