Curated OER
Mental Addition of 3 Numbers pg. 2
Mental math is a wonderful skill for students to hone. In this mental math addition learning exercise, students apply addition fact family strategies to find the sum. Students solve 16 problems.
Primary Resources
Primary Resources: Doubling and Halving
Great teacher resources for helping students learn how to double or halve numbers quickly. Includes worksheets, PowerPoint presentations, and classroom games.