A parallelogram-shaped melon field has a base length of 28 meters and a height of 15 meters. If an average of 40 melon seedlings are planted per square meter, how many are planted in total?
一块平行四边形的瓜地，底长28米，高15米，如果平均每平方米栽瓜苗40棵，共栽多少棵？
<gadget id="calculator">28 * 15 * 40</gadget>
<output>16_800</output>

<result>16_800</result>