Li Xiang spent 4 hours cycling from point A to point B. He traveled an average of 60 kilometers per hour in the first 3 hours, and 72 kilometers in the last hour. How many kilometers are there in total between places A and B?
李想骑车从A地到B地共用了4小时，前3小时平均每小时行了60千米，最后一小时行了72千米，A、B两地一共多少千米．
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">180 + 72</gadget>
<output>252</output>

<result>252</result>