A square cake with a side length of 20 cm is cut into square cakes with a side length of 5 cm. How many pieces can be cut?
一块正方体方糕棱长20厘米，切成棱长5厘米的正方体方糕，可以切多少块．
<gadget id="calculator">20 / 5</gadget>
<output>4</output>

<gadget id="calculator">4 * 4 * 4</gadget>
<output>64</output>

<result>64</result>