standard_description: Determine the unknown whole number in an addition or subtraction equation relating to three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = �� – 3, 6 + 6 = ��.
problem_activity: Task
The high and low temperatures, in degrees Fahrenheit, are plotted in the coordinate plane for 8 days in Nome, Alaska.
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What was the warmest high temperature?
What was the coldest low temperature?
What was the biggest same-day difference between the high and low temperature? On what day did it occur?


aligns: no