If a cube with a side length of 8 decimeters is cut into several smaller cubes with a side length of 2 decimeters, how many square decimeters is added to the surface area?
把一个棱长是8分米的正方体切成棱长是2分米的小正方体若干块，表面积增加了多少平方分米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">3 * 3 * 2 * 64</gadget>
<output>1_152</output>

<result>1_152</result>