The living room of Li’s family is 6 meters long and 4.2 meters wide. The square bricks with a side length of decimeters do not need to be cut.
李家客厅长6米，宽4.2米，选用边长多少分米的方砖铺地不需要切割．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>