Xiaogang's family planted 5 apple trees, and harvested a total of 215 kilograms of apples this year. There are 4 apple trees, each of which harvests an average of 45 kilograms of apples, how many kilograms of apples does the other harvest?
小刚家种了5棵苹果树，今年一共收苹果215千克．有4棵苹果树平均每棵收苹果45千克，另一棵收苹果多少千克？
<gadget id="calculator">45 * 4</gadget>
<output>180</output>

<gadget id="calculator">215 - 180</gadget>
<output>35</output>

<result>35</result>