The speed of the fastest plane in the world can reach 1200 m/s, which is 180 m/s more than three times the speed of sound. How many meters is the speed of the plane faster than the speed of sound?
世界上最快的飞机速度可达1200米/秒，比声音速度的3倍还多180米/秒，飞机的速度比声音的速度快多少米？
<gadget id="calculator">1_200 - 180</gadget>
<output>1_020</output>

<gadget id="calculator">1_020 / 3</gadget>
<output>340</output>

<gadget id="calculator">1_200 - 340</gadget>
<output>860</output>

<result>860</result>