There are 124 poplars in the park, and the number of willows is 4 times that of poplars. How many poplars and willows are there?
公园有杨树124棵，柳树棵数是杨树的4倍，杨树和柳树共有多少棵．
<gadget id="calculator">124 * 4</gadget>
<output>496</output>

<gadget id="calculator">496 + 124</gadget>
<output>620</output>

<result>620</result>