The lowest recorded temperature in Sweden is -38 degrees and the lowest

recorded temperature in Russia is
-68 degrees. How much higher is the
low temperature in Sweden than the
low temperature in Russia.

-68 + -38 = -106 degrees.
Did I solve this right?

why did you ADD the two temperatures, when the question was to fing the difference?

Whenever you are not sure which operation to perform, reduce the problem to a simpler case.
for example, if you are 14 and your sister is 9, and somebody asks how much older you are than your sister, what would you do?

so for the temperature: -38º - (-68º) = 30º

You're correct that the question asks for the difference between the low temperatures in Sweden and Russia, not the sum. To find the difference, you can subtract the low temperature in Russia (-68 degrees) from the low temperature in Sweden (-38 degrees).

When subtracting a negative number, you can think of it as adding the positive value of that number. So, it would be like calculating -38 degrees plus 68 degrees, which gives you 30 degrees.

Therefore, the low temperature in Sweden is 30 degrees higher than the low temperature in Russia.