There are 3 batches of students visiting the factory in the morning, 98 students in each batch, and 227 students visiting in the afternoon. How many students came to visit this day?
上午有3批学生参观工厂，每批98人，下午参观的学生有227人，这天一共有多少学生来参观？
<gadget id="calculator">98 * 3</gadget>
<output>294</output>

<gadget id="calculator">294 + 227</gadget>
<output>521</output>

<result>521</result>