The school organized tree planting activities. The third grade planted 38 trees, and the fourth grade planted three times as many trees as the third grade. How many trees were planted in the two grades?
学校组织植树活动，三年级植树38棵，四年级植树的棵树是三年级的3倍，两个年级共植树多少棵？
<gadget id="calculator">38 * 3</gadget>
<output>114</output>

<gadget id="calculator">38 + 114</gadget>
<output>152</output>

<result>152</result>