There were 534 tourists in the zoo in the morning, and 236 people left at noon. Another 307 people came in the afternoon. How many tourists were there in the park at this time?
动物园上午有游客534人，中午有236人离去．下午又来了307人，这时园内有多少游客？
<gadget id="calculator">534 - 236</gadget>
<output>298</output>

<gadget id="calculator">298 + 307</gadget>
<output>605</output>

<result>605</result>