**Tell us what’s happening:**

It says that the sum should equal 8 but I’m not so sure what I should do.

```
**Your code so far**
```

```
// Example
var sum = 0;
function addThree() {
sum = sum + 3;
}
function addFive() {
sum += 5;
}
```

```
**Your browser information:**
```

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36`

**Challenge:** Understanding Undefined Value returned from a Function

**Link to the challenge:**