The teaching building of Sunshine Primary School has 4 floors, each floor has 8 classrooms, and each classroom has 30 sets of desks and chairs. How many sets of tables and chairs does Sunshine Primary School have?
阳光小学的教学楼共4层，每层楼有8个教室，每个教室有30套桌椅．阳光小学一共有多少套桌椅？
<gadget id="calculator">30 * 8</gadget>
<output>240</output>

<gadget id="calculator">240 * 4</gadget>
<output>960</output>

<result>960</result>