47 lines
1021 B
Markdown
47 lines
1021 B
Markdown
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---
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title: Ruby Numbers Operations
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---
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In Ruby you can perform all standard math operations on numbers, including: addition `+`, subtraction `-`, multiplication `*`, division `/`, find remainders `%`, and work with exponents `**`.
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## Addition:
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* Numbers can be added together using the `+` operator.
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```ruby
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15 + 25 #=> 40
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```
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## Subtraction:
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* Numbers can be subtracted from one another using the `-` operator.
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```ruby
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25 - 15 #=> 10
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```
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## Multiplication:
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* Numbers can be multiplied together using the `*` operator.
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```ruby
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10 * 5 #=> 50
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```
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## Division:
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* Numbers can be divided by one another using the `/` operator.
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```ruby
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10 / 5 #=> 2
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```
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## Remainders:
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* Remainders can be found using the modulus `%` operator.
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```ruby
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10 % 3 #=> 1 # because the remainder of 10/3 is 1
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```
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## Exponents:
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* Exponents can be calculated using the `**` operator.
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```ruby
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2 ** 3 #=> 8 # because 2 to the third power, or 2 * 2 * 2 = 8
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```
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