30 cm square wooden block whose surface is painted red is cut into 27 small cubes of equal size. What is the area of all the small cubes that is not painted red?
一个表面被涂成红色的棱长为30厘米的正方体木块被切成大小相等的27个小正方体，这些小正方体中所有的没有被涂上红色的面积是多少？
<gadget id="calculator">30 / 3</gadget>
<output>10</output>

<gadget id="calculator">27 * 6</gadget>
<output>162</output>

<gadget id="calculator">6 * 9</gadget>
<output>54</output>

<gadget id="calculator">162 - 54</gadget>
<output>108</output>

<gadget id="calculator">10 * 10 * 108</gadget>
<output>10_800</output>

<result>10_800</result>