Xiaohua goes on an outing by bicycle. For the first 8 minutes, she walks on a flat road at a speed of 250 meters per minute; in the last 8 minutes, she walks on a mountain road at a speed of 125 meters per minute. How many meters longer is the flat road than the mountain road?
小华骑自行车去郊游，她前8分钟走平路，每分钟以250米的速度前进；后8分钟走山路，每分钟以125米的速度前进．平路比山路多多少米？
<gadget id="calculator">250 * 8</gadget>
<output>2_000</output>

<gadget id="calculator">125 * 8</gadget>
<output>1_000</output>

<gadget id="calculator">2_000 - 1_000</gadget>
<output>1_000</output>

<result>1_000</result>