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MathCoder
April 21, 2009 Games

MathCoder allows you to encode short messages using simple addition and subtraction problems. I created MathCoder as a drill for my first grader, who needs to practice his addition and subtraction.

Your message (between 1 and 26 characters in length, letters, numbers and spaces only please).
Largest Number: Problem types: Both Addition Only Subtraction Only
sample image