There are 84 geese on the lake, 29 of which are gray geese, and the rest are white geese. How many more white geese than gray geese?
湖面上有84只鹅，其中有29只是灰鹅，其余的都是白鹅．白鹅比灰鹅多多少只？
<gadget id="calculator">84 - 29 - 29</gadget>
<output>26</output>

<result>26</result>