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Student Instructions
Use any tools, shapes, etc. to show how you add the big numbers on the two pages.
You can use 
or 
Use 
to talk about your thinking and tell how you added the numbers.
when you are done.
Teacher Notes (not visible to students)
Give this activity to students before teaching any two digit addition strategies. Use it to find out which strategies students are already using. Then group students or plan lessons according to differentiated needs.
