There were 472 tourists in the zoo in the morning, 184 people left at noon, and 507 people came in the afternoon. How many people are in the zoo now?
动物园上午有游客472人，中午有184人离去，下午又来了507人．现在动物园内有多少人？
<gadget id="calculator">472 - 184</gadget>
<output>288</output>

<gadget id="calculator">288 + 507</gadget>
<output>795</output>

<result>795</result>