Paving a piece of ground with square square bricks, if using 250 square bricks with a side length of 4 decimeters, how many square bricks with a continuous length of 5 decimeters will be used instead?
用正方形方砖铺一块地，如果用边长为4分米的方砖要用250块，那么改用连长为5分米的方砖，要用多少块？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">250 / 25</gadget>
<output>10</output>

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

<result>160</result>