It's time for subtraction! In this episode Pam and Kim name and give examples of the four main subtraction strategies students need to own to solve any subtraction problem that is reasonable to solve without a calculator.
Talking Points:
- Remove a Friendly Number
- Remove a Friendly Number - Over
- Remove to a Friendly Number
- Constant Difference
- How do students choose which one to use?
Get the download! www.mathisfigureoutable.com/big
