320 people visited the museum in the morning, 85 people left at noon, and 128 people came in the afternoon. How many people are there now?
博物馆上午有320人参观，中午离去85人，下午又来了128人，现在有多少人．
<gadget id="calculator">320 - 85</gadget>
<output>235</output>

<gadget id="calculator">235 + 128</gadget>
<output>363</output>

<result>363</result>