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, January 14, 2009
5th - 7th grade
The average low temperature for three days was 12 degrees. The next two days the low temperature was -20 degrees, and -16 degrees. After the 6th day the average low temperature was -22 degrees. What was the low temperature on the 6th day?
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