The length of a classroom is 80 decimeters, the width is 60 decimeters, and the floor is paved with square bricks with a side length of 2 decimeters. How many bricks are needed in total?
一个教室的长是80分米，宽是60分米，在地面上铺边长2分米的方砖，一共需要多少块？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<gadget id="calculator">80 * 15</gadget>
<output>1_200</output>

<result>1_200</result>