Every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines. How many students are in the class?
Solution
Brain Teaser 2/12/2013
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Holiday Teaser,
How Many?
Every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines. How many students are in the class?
Solution
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