To decorate an office in a unit, it takes 240 square bricks with an area of 36 decimeters to pave the floor. If the floor is replaced with square bricks with a length of 8 decimeters, how many bricks are needed? (Solution with proportional knowledge)
某单位装修一间办公室，用面积36平方分米的方砖铺地需要240块，如果改用长8分米的方砖铺地，需要多少块？(用比例知识解)
<gadget id="calculator">36 * 240</gadget>
<output>8_640</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">8_640 / 64</gadget>
<output>135</output>

<result>135</result>