Critical thinking and number sense based math problems to challenge students of all grade levels. Most of these problems require more critical thinking and less number crunching than typical textbook math problems. Check back 5 days per week for a new problem.
Tuesday, October 27, 2009
7th Grade
The sum of 5 numbers is odd. Which of the followings statements must be true? a) There are an odd number of even numbers. b) There is an even number of odd numbers. c) There are an odd number of odd numbers. d) There are no even numbers.
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