Grandma Wang’s house needs 160 pieces of square bricks with an area of 9 decimeters to pave the floor. If the floor is replaced with square bricks with a side length of 4 decimeters, how many pieces will be used? (Solve with ratio)
王奶奶家装修房子，用面积是9平方分米的方砖铺地要用160块，如果改用边长为4分米的方砖铺地，要用多少块？(用比例解)
<gadget id="calculator">160 * 9</gadget>
<output>1_440</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">1_440 / 16</gadget>
<output>90</output>

<result>90</result>