The school carried out afforestation activities. The third grade planted 140 trees, and the fifth grade planted four times that of the third grade. How many trees were planted in the fifth grade?
学校开展植树造林活动，三年级植了140棵树，五年级植的是三年级的4倍，五年级植了多少棵树？
<gadget id="calculator">140 * 4</gadget>
<output>560</output>

<result>560</result>