Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
6th grade foundations (Eureka Math/EngageNY)
Module 2: Foundations
Topic B: Foundations
Adding decimals: 0.822+5.65
Adding decimals: 0.822+5.65
Sal solves 0.822+5.65 using "standard algorithm".
License: CC BY-NC-SA by Khan Academy