Today I was confused about how to teach subtraction across the zeroes. I felt that most of my students were understanding the concept of regrouping, and "going next door" to borrow from a higher place value. But when I came to the subtracting across the zeroes with regrouping, there were some things that confused me! So I found a couple of videos to help me and my students understand subtraction across the zeros better.






This helped me show the process a little better and I liked the song :)