The third-grade gymnastics performance team has 12 people in each row, and a total of 4 rows. If you want to stand in a square team with 8 people in each row and a total of 8 rows, how many more people will be added?
三年级体操表演队每排站12人，一共站4排．如果要站成每排8人一共站8排的方队，还要增加多少人？
<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<gadget id="calculator">64 - 48</gadget>
<output>16</output>

<result>16</result>