A rope is 86 meters long, 38 meters are used for the first time, and 29 meters are used for the second time, how many meters are used for the two times? what is the correct formula
一根绳子长86米，第一次用去38米，第二次用去29米，两次一共用去了多少米？正确的算式是多少
<gadget id="calculator">38 + 29</gadget>
<output>67</output>

<result>67</result>