A sidewalk is 30 meters long, 3 meters wide, and uses square cement bricks with a side length of 3 decimeters. How many bricks are needed to pave the floor?
一条人行道长30米，宽3米，用边长是3分米的正方形水泥砖，铺地需要多少块？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * (3/10)</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">3 / (9/100)</gadget>
<output>100/3 = around 33.333333</output>

<gadget id="calculator">30 * (100/3)</gadget>
<output>1_000</output>

<result>1_000</result>