Learn

Using Number Variables

Review

Excellent work! You’ve completed the final lesson on variables and learned the fundamentals of numbers in Kotlin. Let’s review what was covered.

- The
`Number`

superclass contains`Int`

,`Long`

,`Short`

,`Byte`

,`Float`

and`Double`

data types. - The arithmetic operators supported by Kotlin include
`+`

,`-`

,`*`

,`/`

and`%`

. - Augmented assignment operators include an arithmetic and assignment operator used to calculate and reassign a value in one step.
- The increment operator includes two consecutive plus operators,
`++`

, used to add 1 to a value and reassign the result. - The decrement operator includes two consecutive minus operators,
`--`

, used to subtract one from a value and reassign the result. - The order of operations includes parentheses, multiplication, division, modulus, addition and subtraction.
- The
`Math`

library is inherited from Java and contains various mathematical functions for use in a Kotlin program.

Feel free to utilize the empty **Review.kt** file and output terminal on the right to hone your understanding of numbers and practice writing Kotlin code.

### Instructions

Click **Up Next** when you’ve completed the review.