Looking for the
"Reeling and Writhing, of course, to begin with," the Mock Turtle replied; "and then the different branches of Arithmetic-- Ambition, Distraction, Uglification, and Derision."
-- Lewis Carroll,
Alice in Wonderland
or the free, addition-only version
from the Apple App Store!
Want to see how it works? Check out this video with spoken instructions:
Or this video that silently completes 50 problems:
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