A woodpecker eats 632 pests a day, and a frog eats 78 pests a day, so how many more pests does a woodpecker eat than a frog?
啄木鸟每天吃害虫632只，青蛙每天吃害虫78只，那么啄木鸟每天吃害虫比青蛙多多少只．
<gadget id="calculator">632 - 78</gadget>
<output>554</output>

<result>554</result>