The school planted 6 rows of poplars, 15 in each row, 40 more willows than poplars, how many willows were planted.
学校栽了6行杨树，每行15棵，栽的柳树比杨树多40棵，栽了多少棵柳树．
<gadget id="calculator">6 * 15</gadget>
<output>90</output>

<gadget id="calculator">90 + 40</gadget>
<output>130</output>

<result>130</result>