The third grade students have to go to the orchard to water the fruit trees. There are 8 rows of fruit trees, each with 11 trees. The students have already watered 66 trees, how many are still left?
三年级同学要到果树园给果树浇水，一共有8行果树，每行11棵．同学们已经浇了66棵，还有多少棵没有浇？
<gadget id="calculator">11 * 8</gadget>
<output>88</output>

<gadget id="calculator">88 - 66</gadget>
<output>22</output>

<result>22</result>