These videos are engaging and fun! Each one runs for about 30 minutes! Use this time to keep your students engaged while you re-teach small groups or test students one-on-one. These are also wonderful resources for subs! This set includes 6 videos focusing on addition and subtraction facts. There is a video for addition to 12, addition to 20, subtraction from 12, subtraction from 20, and two missing addend videos.Due to the large file size, this download includes a link to access the files