To decorate a conference room, 160 square bricks with a side length of 3 decimeters are needed. If you use square bricks with a side length of 4 decimeters instead, how many pieces are needed?
装修一个会议室，用边长3分米的方砖需要160块．如果改用边长4分米的方砖来铺，需要多少块？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">160 / 16</gadget>
<output>10</output>

<gadget id="calculator">3 * 3 * 10</gadget>
<output>90</output>

<result>90</result>