## Elementary

### Instructions

Create 3 functions:
- `multiply` that act like the `*` operator without using it
- `divide` that do an integer division without using `/`
- `modulo` that act like the `%` operator without using it

> functions should have (a, b) as arguments

### Code provided

> all code provided will be added to your solution and doesn't need to be submited.

```js
Math.imul = undefined
```