There is a distance of 291 meters from Xiao Ming's home to school. He has to walk 2 round trips from home to school every day. How many meters does he walk in total in one day?
小明家到学校有291米的距离，他每天从家到学校要走2个来回，他一天共走多少米？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">291 * 4</gadget>
<output>1_164</output>

<result>1_164</result>