In a golf tournament, lindsey scored a +3 on the first round and a minus one on the second. what was the difference between her scores in the first 2 rounds?

The difference is:

Step-by-step explanation:

In order to solve this exercise it is important to remember that:

1. The result of a Subtraction is known as "Difference".

2. The multiplication of signs:

According to the information given in the exercise you know that the following expression represents Lindsey's score on the first round of a golf tournament:

And the expression that represents Lindsey's score on the second round of that golf tournament is:

Therefore, you can find the difference between Lindsey's scores in those rounds by subtracting those two expressions.

Then, you get that this is: