A classroom is 11.2 meters long and 4.8 meters wide. If square bricks with a side length of 0.8 meters are used to pave the floor, how many bricks are needed?
一间教室长11.2米，宽4.8米，如果用边长为0.8米的方砖铺地，共需要多少块？
<gadget id="calculator">0.8 * 0.8</gadget>
<output>0.64</output>

<gadget id="calculator">4.8 / 0.64</gadget>
<output>7.5</output>

<gadget id="calculator">11.2 * 7.5</gadget>
<output>84</output>

<result>84</result>