The school dance team used to have 28 people. This year, 12 people left the dance team, and 16 people joined later. How many people are there in the dance team now?
学校舞蹈队原有28人，今年有12人离开舞蹈队，后来又新加入16人，现在舞蹈队有多少人？
<gadget id="calculator">28 - 12</gadget>
<output>16</output>

<gadget id="calculator">16 + 16</gadget>
<output>32</output>

<result>32</result>