Ding Ding and his mother eat in a restaurant, and the average meal cost per person is 70 yuan. I ran into my mother’s colleague Aunt Zhang, so the three of us ate together and added two dishes. After adding the dishes, the average meal cost per person increased by 6 yuan. How much is the total price of the two new dishes?
丁丁和妈妈在餐馆吃饭，平均每人餐费是70元．碰上妈妈的同事张阿姨，于是3人一起用餐，还加了两个菜，加菜后平均每人餐费增加了6元，新加的两个菜总价是多少元？
<gadget id="calculator">70 + 6</gadget>
<output>76</output>

<gadget id="calculator">76 * 3</gadget>
<output>228</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<gadget id="calculator">228 - 140</gadget>
<output>88</output>

<result>88</result>