Divide the candy evenly among 7 children, each child gets 3 candies, and there are 2 left. How many candies are there in total?
把糖平均分给7个小朋友，每个小朋友都分到3颗，还剩2颗，这些糖一共有多少颗？
<gadget id="calculator">7 * 3</gadget>
<output>21</output>

<gadget id="calculator">21 + 2</gadget>
<output>23</output>

<result>23</result>