There are 985 tourists in the morning of the World Horticultural Exposition, 541 people leave at noon, and 235 people come in the afternoon. How many tourists are there in the garden at this time?
世界园艺博览会上午有游客985人，中午有541人离去，下午又来了235人，这时园内有游客多少人？
<gadget id="calculator">985 - 541</gadget>
<output>444</output>

<gadget id="calculator">444 + 235</gadget>
<output>679</output>

<result>679</result>