Hi guys, Welcome to the Advanced Video Search Engine, and you are watching Addition and Subtraction Strategies for 1st Grade // Addition and Subtraction within 20 - activities. That video is uploaded by Susan Jones Teaching at 2024-01-28T05:15:00-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [Do-6coDIzME]