At noon, the air temperature was + 6. By the evening, it changed by -5. By the night, by -3.

At noon, the air temperature was + 6. By the evening, it changed by -5. By the night, by -3. What was the air temperature at night?

We know that at first the temperature was +6 degrees. Then it changed by -5 degrees. Let’s find out what the temperature was in the evening. Let’s write an example for this:

6 – 5 = 1 (g) – air temperature in the evening;

It was further said that the temperature at night dropped even lower by 3 degrees. Let’s write an example again. But we will subtract 3 degrees not from 6, but from the new temperature – 1 degree. Let’s get the following example:

1 – 3 = -2 (g) – air temperature at night.

Answer: at night the air temperature was -2 degrees.