Dahua and Xiaogang each have 10 pictures, after Dahua gave Xiaogang 2, how many more pictures will Xiaogang have than Dahua?
大华和小刚每人有10张画片，大华给小刚2张后，小刚比大华多几张？
<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<gadget id="calculator">10 - 2</gadget>
<output>8</output>

<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<result>4</result>