Xiaoming's family has 45 roosters and hens. The feather colors of these chickens are divided into two types: flower chicken and white chicken. It is known that there are 11 flower-haired roosters, 16 white-haired chickens, and 29 hens. Find out how many white-haired hens there are.
小明家养了公鸡和母鸡共45只，这些鸡的羽毛颜色分为花毛鸡和白毛鸡两种．已知花毛公鸡有11只，白毛鸡有16只，母鸡有29只．求白毛母鸡有多少只．
<gadget id="calculator">45 - 29 - 11</gadget>
<output>5</output>

<gadget id="calculator">45 - 29 - 5</gadget>
<output>11</output>

<result>11</result>