The fourth and fifth grade students of Yucai Primary School planted trees, the fifth grade students planted 240 trees, and another 16 trees were twice the number of trees planted by the fourth grade students. How many trees did the fourth grade students plant? (solution with equation)
育才小学四、五年级学生植树，五年级学生植树240棵，再植16棵就是四年级学生植树棵数的2倍，四年级学生植多少棵？(用方程解答)
<gadget id="calculator">240 + 16</gadget>
<output>256</output>

<gadget id="calculator">256 / 2</gadget>
<output>128</output>

<result>128</result>