There are 64 people in the physical training team of Xiadian Primary School, 12 of them are basketball players, the number of track and field players is 2.5 times that of basketball players, and the rest are football players. How many football players are there?
下店小学体训队有64人，其中12人是篮球队员，田径队员的人数是篮球队员的2.5倍，其余的是足球队员，足球队员有多少人？
<gadget id="calculator">12 * 2.5</gadget>
<output>30</output>

<gadget id="calculator">64 - 12 - 30</gadget>
<output>22</output>

<result>22</result>