On a cold February morning, Colton checked the temperature on his phone and saw that it was -3ºC. When he checked again after sc

Question

3 years ago

6

On a cold February morning, Colton checked the temperature on his phone and saw that it was -3ºC. When he checked again after sc

hool, 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?

Mathematics

1 answer:

julsineya [31] · Answer 1 · 2022-09-08T11:38:38+03:00

julsineya [31]3 years ago

5 0

Ellen is incorrect, -3 subtracted by 3 gets you -6. Ellen is wrong because she subtracted -3 instead of just 3. Subtracting a negative number is the same thing as adding.