Lesson: Relating Addition to Subtraction: Numbers up to 20 Mathematics • 1st Grade

In this lesson, we will learn how to write a family of addition and subtraction facts linking three numbers up to 20.

Lesson Video

Video Thumbnail
10:50

Sample Question Videos

  • 03:26
  • 02:57
  • 01:52

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.