The grain store shipped 3 trucks of fresh rice. Each truck contained 30 bags, each bag weighing 45 kilograms. How many kilograms of rice were shipped in total?
粮店运来3车新鲜大米，每辆车装了30袋，每袋45千克，一共运来多少千克大米？
<gadget id="calculator">45 * 30</gadget>
<output>1_350</output>

<gadget id="calculator">1_350 * 3</gadget>
<output>4_050</output>

<result>4_050</result>