1. use this link to watch videos on regrouping, and place value.
https://www.bing.com/videos/search?q=utubeadditionwith+regrouping&docid
2. Use this link to watch the telling time video.
https://www.bing.com/videos/search?q=youtube+telling
3. Fun videos to practice skip counting.
https://www.bing.com/videos/search?q=utube+skip+counting&qpvt=utube+skip+counting&FORM=VDRE
4. Use this link to see how to subtract with regrouping.
https://www.bing.com/videos/search?q=youtube+subtraction+with+regrouping