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# What is the value of totalScore? var totalScore = 10 - 20 ++totalScore

I don't understand this question.

```What is the value of totalScore?
var totalScore = 10 - 20
++totalScore
```

So what is happening is it is declaring a variable called totalScore. Total score is initialized with (10 - 20), so the initial value of totalScore is equal to -10.

With the ++ and -- operator, it is the same as saying:

```totalScore = totalScore + 1
```

It is just a really shortened way of saying it.

The answer to the question is -9.

```var totalScore = 10 - 20 // This equals -10
++totalScore             // This takes -10 and adds one to make -9
```

Hi John

If you put this into a playground file you will get the answer

```var totalScore = 10 - 20  \\ - 10
++totalScore \\ -9
```