The girl has 12 apples, and the boy has 26 apples. As many apples as the boy gives to the girl, they both have the same number of apples.
女孩有12个苹果，男孩有26个苹果，男孩拿多少个苹果给女孩，两人的苹果就一样多了．
<gadget id="calculator">12 + 26</gadget>
<output>38</output>

<gadget id="calculator">38 / 2</gadget>
<output>19</output>

<gadget id="calculator">26 - 19</gadget>
<output>7</output>

<result>7</result>