A square iron block has an edge length of 4 decimeters, and it is forged into a rectangular parallelepiped iron bar whose base is 8 cm long and wide. How many meters is this rectangular parallelepiped iron bar?
一个正方体铁块棱长4分米，将它煅造成一个底面长和宽都是8厘米的长方体铁条，这个长方体铁条有多少米长？
<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">10 / 64 / 100</gadget>
<output>1/640 = around 0.001563</output>

<gadget id="calculator">4 * 10 * 4 * 10 * 4 * (1/640)</gadget>
<output>10</output>

<result>10</result>