freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-an.../basic-javascript/add-two-numbers-with-javasc...

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---
id: cf1111c1c11feddfaeb3bdef
title: Add Two Numbers with JavaScript
challengeType: 1
videoUrl: 'https://scrimba.com/c/cM2KBAG'
forumTopicId: 16650
dashedName: add-two-numbers-with-javascript
---
# --description--
`Number` is a data type in JavaScript which represents numeric data.
Now let's try to add two numbers using JavaScript.
JavaScript uses the `+` symbol as an addition operator when placed between two numbers.
**Example:**
```js
myVar = 5 + 10; // assigned 15
```
# --instructions--
Change the `0` so that sum will equal `20`.
# --hints--
`sum` should equal `20`.
```js
assert(sum === 20);
```
You should use the `+` operator.
```js
assert(/\+/.test(code));
```
# --seed--
## --after-user-code--
```js
(function(z){return 'sum = '+z;})(sum);
```
## --seed-contents--
```js
var sum = 10 + 0;
```
# --solutions--
```js
var sum = 10 + 10;
```