Mathematics, 18.03.2021 03:20 onlymyworld27

On a cold February morning, Colton checked the temperature on his phone and saw that it was -3ºC. When he checked again after school, the temperature had dropped 3°C. What was the temperature after school? To solve the problem, Ellen subtracted -3 - (-3) and came up with an answer of 0°C. Is Ellen correct? Why or why not?

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On a cold February morning, Colton checked the temperature on his phone and saw that it was -3ºC. Wh...

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