Math Arguments
180 Days of Ideas for Discussion in Math Class. (as of 9July2014, we're in overtime!)
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The Math Concepts Challenge
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Monday, August 11, 2014
214: Last Digit
What is the last digit (units digit) in the expansion of 3
9999
?
How can we find this digit with tech?
Without tech?
Which way is more "clever"?
Which way gives you more satisfaction?
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