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.
Wednesday, February 4, 2009
7th grade
Bill went bowling last night. On his first shot he knocked down 8 out of the 10 pins. How many different ways can 8 out of 10 pins be knocked down?
Hint: How many different ways can 2 pins be left standing?
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