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 18, 2009
5th - 8th grade
Christina scored an average of 76 on her first 4 tests. She wants to get an A- Average on her tests. What grade must she core on the 5th test to increase her average to 90 so that she can earn an A-?
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