The school plans to pave the floor of the conference room. It takes 240 pieces to pave the floor with square bricks with an area of 36 decimeters. If it is replaced with square bricks with a side length of 8 decimeters, how many pieces are needed? (Solution with proportional knowledge)
学校计划给会议室铺上地板，用面积为36平方分米的方砖来铺需要240块，如果改用边长为8分米的方砖来铺，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>