The students participated in tree planting, the fourth grade planted 46 trees, the fifth grade students planted twice as many trees as the fourth grade students, the third grade students planted 53 fewer trees than the fifth grade students, how many trees did the third grade students plant?
同学们参加植树，四年级植树46棵，五年级同学植树的棵数是四年级的2倍，三年级比五年级少植53棵，三年级同学植树多少棵？
<gadget id="calculator">46 * 2</gadget>
<output>92</output>

<gadget id="calculator">92 - 53</gadget>
<output>39</output>

<result>39</result>