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TeachersFirst's Middle School Brain Twisters

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1. (10 points)
Ebeneezer has decided to keep his Christmas tree until all the needles fall off. His tree has 10,420 needles. Half of the remaining needles will fall off each day, beginning on January 1. When will his tree be down to its last needle?
About January 15th
Sometime in April
About February 28th
A week after President's Day

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