Xiaohong walks around a rectangular flower bed for a week and takes 980 steps. If his average step length is 0.55 meters and the width of the flower bed is 124.5 meters, what is the length of the flower bed in meters?
小红围一个长方形的花坛走一周，走了980步，如果他的平均步长0.55米，花坛的宽124.5米，这个花坛的长是多少米？
<gadget id="calculator">0.55 / 2</gadget>
<output>0.275</output>

<gadget id="calculator">980 * 0.275</gadget>
<output>269.5</output>

<gadget id="calculator">269.5 - 124.5</gadget>
<output>145</output>

<result>145</result>