Mingming and Yuanyuan had a rope skipping competition. Mingming jumped 45 times. Yuanyuan jumped 23 times less than Mingming. How many times did Yuanyuan jump?
明明和圆圆比赛跳绳，明明跳了45下，圆圆比明明少跳23下，圆圆跳了多少下？
<gadget id="calculator">45 - 23</gadget>
<output>22</output>

<result>22</result>