This Smart Notebook file includes 6 slides (cover slide, 4 different addition strategy slides and a recording sheet slide).
The 4 subtraction strategies covered in this document are:
Chunks on a Number Line
You can print these slides and post on your wall as a resource for your students. There is also a recording sheet that your students can use to show an addition problem with the four different strategies.
You may also wish to look at my addition strategy posters,