Instructional Video

Ck 12: Elem Math: Overview of Subtraction Numbers Up to 20

Curated by ACT

[Free Registration/Login may be required to access all resource tools.] The video is an overview of the parts of a subtraction problem in addition to an example that uses the counting back method to solve.

3 Views 0 Downloads
Classroom Considerations
  • Knovation Readability Score: 2 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional
  • This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information