The exposed part of the school flagpole is 2.79 meters long, which is 1.8 meters longer than the buried part. How many meters is the total length of the flagpole?
学校旗杆露在地上的部分长2.79米，比埋在地下的部分长1.8米，旗杆一共长多少米？
<gadget id="calculator">2.79 - 1.8</gadget>
<output>0.99</output>

<gadget id="calculator">0.99 + 2.79</gadget>
<output>3.78</output>

<result>3.78</result>