Xingxing Experimental School has 9 grades, each grade has 7 classes, and each class has 45 students on average. How many students are there in the whole school?
星星实验学校有9个年级，每个年级有7个班，平均每个班有45名学生．全校一共有多少名学生？
<gadget id="calculator">9 * 7 * 45</gadget>
<output>2_835</output>

<result>2_835</result>