About This Lesson
This resource is a starter activity for mental addition. It uses a PowerPoint with automatic timings.It can also be Differentiated or adapted and used as a template to tailor it to your needs.Best used when children have digit cards or mini whiteboards to show their answer. Aligned with Common Core State Standards: 1.OA.6, Operations and Algebraic Thinking; 1.NBT.4, Number and Operations in Base Ten; 2.OA.3, Operations and Algebraic Thinking.