The fifth grade students made 80 Chinese knots, 6 more than twice the number made by the fourth grade students. How many Chinese knots did the fourth and fifth grade students make in total? (column equation solution)
五年级同学做了80个中国结，比四年级同学做的个数的2倍多6个，四、五年级一共做了多少个中国结？(列方程解答)
<gadget id="calculator">80 - 6</gadget>
<output>74</output>

<gadget id="calculator">74 / 2</gadget>
<output>37</output>

<gadget id="calculator">80 + 37</gadget>
<output>117</output>

<result>117</result>