The little squirrel is 7020 meters from home to the woods. It runs at a speed of 420 m/min for 10 minutes. How many meters is it away from the woods?
小松鼠从家到树林7020米，它以420米/分的速度，跑了10分钟，离树林还有多少米？
<gadget id="calculator">420 * 10</gadget>
<output>4_200</output>

<gadget id="calculator">7_020 - 4_200</gadget>
<output>2_820</output>

<result>2_820</result>