The sidewalk is 150 meters long and 3 meters wide. If it is covered with cement square bricks with an area of 9 square decimeters, how many square bricks are needed?
人行道长150米，宽3米，用面积为9平方分米的水泥方砖去铺满它，需要这样的方砖多少块．
<gadget id="calculator">100 / 9</gadget>
<output>100/9 = around 11.111111</output>

<gadget id="calculator">150 * 3 * (100/9)</gadget>
<output>5_000</output>

<result>5_000</result>