Doudou walks an average of 64 meters per minute. He has walked from home to school for 5 minutes, which is exactly half of the journey. How many meters is it from Doudou's house to the school?
豆豆平均每分钟走64米，他从家到学校已经走了5分钟，恰好走了全程的一半．豆豆家到学校有多少米？
<gadget id="calculator">64 * 5 * 2</gadget>
<output>640</output>

<result>640</result>