There are 47 gray rabbits on the grass, and there are 5 fewer white rabbits than the gray rabbits. How many rabbits are there in the grass?
草地上有47只灰兔，白兔比灰兔少5只，草地上一共有多少只兔子？
<gadget id="calculator">47 - 5</gadget>
<output>42</output>

<gadget id="calculator">42 + 47</gadget>
<output>89</output>

<result>89</result>