Temperature rise and fall
On Friday, the temperature was 82°F. The temperature changed by –2°F on Saturday, and then it changed by 5°F on Sunday. What was the temperature on Sunday? How did the temperature change?
Note that we consider the mathematical problem formulated in this way to be inaccurate. The change in temperature does not yet say in what direction it occurred, whether it rose or fell. The weather can both drop -2 degrees and rise +2 degrees. In this case, a change means a rise in temperature.
Note that we consider the mathematical problem formulated in this way to be inaccurate. The change in temperature does not yet say in what direction it occurred, whether it rose or fell. The weather can both drop -2 degrees and rise +2 degrees. In this case, a change means a rise in temperature.
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