Question

Which two temperatures have a sum of 0 degrees Celsius?

4 degrees Celsius and 4 degrees Celsius
4 degrees Celsius and −4 degrees Celsius
−4 degrees Celsius and −4 degrees Celsius
4 degrees Celsius and 0 degrees Celsius

Answer 1

@acxbox22

Answer 2

again, what have you tried, work?

Answer 3

?

Answer 4

With these types of problems, it is difficult to show work.
In school, children are often taught to memorize the fact that 4+4=8 (a is wrong)
Same with 4+0=4 (d is wrong)

Anyway, one could show their work by drawing a number line...but in the future doing that every time you want to subtract some simple numbers is going to be a hassle. Cut him some slack.

I have left two options to choose from.

Answer 5

hmmm

Answer 6

b

Answer 7

You are correct

Answer 8

work is simple here little bird, you say well, 4+4=?
4+(-4)=?
-4-4=?
that type of thing, and should be able to explain that reasoning for the work

Answer 9

you should not memorize either, but be able to simplify to something if you do not know the answer