rectangular vegetable plot is 60 meters long and 30 meters wide, and one tomato is planted per 2 square meters. How many tomatoes can be planted in total?
一块长方形的菜地长60米，宽30米，每2平方米栽一棵西红柿，一共可以栽多少棵西红柿？
<gadget id="calculator">30 / 2</gadget>
<output>15</output>

<gadget id="calculator">60 * 15</gadget>
<output>900</output>

<result>900</result>