Xiao Ming ran 4 laps along the rectangular playground with a length of 90 meters and a width of 40 meters. How many meters did he run in total?
小明沿着长90米，宽40米的长方形操场跑了4圈，他一共跑了多少米．
<gadget id="calculator">90 + 40</gadget>
<output>130</output>

<gadget id="calculator">130 * 2</gadget>
<output>260</output>

<gadget id="calculator">260 * 4</gadget>
<output>1_040</output>

<result>1_040</result>