A parallelogram-shaped open space is planted with turf. Its base is 100 meters long and 30 meters high. The price of turf per square meter is 10 yuan. How much is the approximate cost of planting this turf?
将一块平行四边形的空地种上草皮，它的底边长100米，高30米．每平方米草皮价钱是10元，种这块草皮大约需要多少元？
<gadget id="calculator">100 * 30 * 10</gadget>
<output>30_000</output>

<result>30_000</result>