Interested in purchasing the Addition AND Subtraction Collections? You can save money by purchasing them together. Click on the link below for more details:
Mental Math Strategy Units: Addition and Subtraction Combo Pack
This zipped file contains all six units in the SUBTRACTION portion of the Mental Math Strategy Collection
Counting Back and Counting Up
Using Doubles and Building on Doubles
Expanding the Subtrahend
Please see the free preview for detailed information.
You may also be interested in my YouTube video about mental math subtraction strategies, which you can view by clicking on the link below:
Shelley Gray on YouTube: Mental Math Subtraction Strategies
By purchasing these units together in this zipped file, you will receive a savings of $6.95.
To view the Mental Math Addition Collection, please see the link below:
Mental Math Units: the Complete Addition Collection