There are 10 males and 10 females in each class in the relay race of the school sports meeting, so how many students will participate in the 8 classes?
学校运动会接力赛每班参赛人数为10男10女，那么8个班共有多少个同学参加．
<gadget id="calculator">10 + 10</gadget>
<output>20</output>

<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<result>160</result>