The teaching building of the New District Primary School has four floors, each floor has 3 classrooms, and 6 potted flowers are placed in each classroom. How many potted flowers are placed in total?
新区小学的教学楼有四层，每层有3个教室，每个教室放6盆花，一共放了多少盆花？
<gadget id="calculator">3 * 4 * 6</gadget>
<output>72</output>

<result>72</result>