๐Learn a range of strategies so you can pick the best one in any situation!๐
Mental Strategies
Compensation Strategy
+2 digits
+3 digits
-2 digits
-3 digits
Non-partitioning Strategy
Written Strategies
https://youtube.com/playlist?list=PLRZmb2xYEg_Ey0PCbz01kJZa7riYDOvSV