The length of a kitchen is 30 decimeters and the width is 20 decimeters. Now it needs to be paved with floor tiles with a side length of 2 decimeters. Each floor tile is 10 yuan. How much is the total cost?
一间厨房的长是30分米，宽是20分米，现在要给它铺上边长是2分米的地砖，每块地砖10元，共需多少元？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">20 / 4</gadget>
<output>5</output>

<gadget id="calculator">30 * 5</gadget>
<output>150</output>

<gadget id="calculator">10 * 150</gadget>
<output>1_500</output>

<result>1_500</result>