

The other way uses columns and chips so they see it as the base to the 0, 1, 2, 3, etc. Honestly, I have only done the way with the visual display because I found that lots of fun and I wasn't sure how to use the part with the chips.

The help section has information on using the app, adding and subtracting and a few other things people might want to know about. What I like about this app is that it is very user friendly and each time you choose a base, there is a welcome to the planet speech where the greeter explains the base they use.
From my point of view as an adult, I had so much fun playing with it and this is one I plan to put on my iPads for next year and I am going to share this with everyone in the upper elementary. Best of all, its free!!!!!!!!
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