There are 135 white rabbits raised on the farm, and there are 85 gray rabbits three times less than the white rabbits. How many rabbits are there in total on the farm?
农场养了135只白兔，灰兔比白兔的3倍少85只．农场一共养了多少只兔？
<gadget id="calculator">135 * 3</gadget>
<output>405</output>

<gadget id="calculator">405 - 85</gadget>
<output>320</output>

<gadget id="calculator">320 + 135</gadget>
<output>455</output>

<result>455</result>