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Student Instructions
There are 5 pages in this activity.
Find the HOW.
Is there more than one way to work them out?
Which way is the best way for you?
Tap the 
button and read the problems on each page.
Use whatever you need to solve the problems. That might be counters. pencil and paper, calculators, or something else.
or take a 
to show your proof.
Finally, when you have completed them, tap the 
Teacher Notes (not visible to students)
All images are in good faith believed to have Creative Commons license. This could be used as an interleaving task.
