A road construction team builds a road with a length of 1200 meters. Team A alone can complete the task in 40 days, and team B alone can complete the task in 30 days. How many meters does team A repair less than team B every day?
筑路队修筑一条长1200米的公路，甲队单独修40天可以完成任务，乙队单独修30天可以完成任务．甲队每天修的比乙队少多少米？
<gadget id="calculator">1_200 / 30</gadget>
<output>40</output>

<gadget id="calculator">1_200 / 40</gadget>
<output>30</output>

<gadget id="calculator">40 - 30</gadget>
<output>10</output>

<result>10</result>