It is 458 meters from Yanyan's home to the school. On Monday morning, she went to school, walked 245 meters, found that she forgot to bring her homework, returned home to pick it up, and went to school again. So how many meters did Yanyan walk from home to school on Monday morning?
燕燕家到学校有458米．星期一早上她去上学，走出245米，发现忘记带作业本，又返回家里取，再去学校．这样燕燕星期一早上从家里出来到学校，一共走了多少米？
<gadget id="calculator">245 * 2</gadget>
<output>490</output>

<gadget id="calculator">458 + 490</gadget>
<output>948</output>

<result>948</result>