The weather forecast for January 1, 2010 shows that the lowest temperature in Beijing is – 6°C and the lowest temperature in Lianjiang County is 13°C. The lowest temperature in Beijing on this day is

19?

Special topic: application questions.

Analysis: Subtract the temperature in Beijing from the temperature in Lianjiang, and then calculate based on the fact that subtracting a number is equal to adding the opposite number of this number.

According to the question, 13 - (-6)=" 13" + 6 = 19

Comments: This question mainly tests the operation rules of rational number subtraction. Proficient mastery of the operation rules is The key to solving the problem.