Ruby Numbers Operations


title: Ruby Numbers Operations

In Ruby you can perform all standard math operations on numbers, including: addition +, subtraction -, multiplication *, division /, find remainders %, and work with exponents **.

Addition:

  • Numbers can be added together using the + operator.
    ruby 15 + 25 #=> 40

Subtraction:

  • Numbers can be subtracted from one another using the - operator.
    ruby 25 - 15 #=> 10

Multiplication:

  • Numbers can be multiplied together using the * operator.
    ruby 10 * 5 #=> 50

Division:

  • Numbers can be divided by one another using the / operator.
    ruby 10 / 5 #=> 2

Remainders:

  • Remainders can be found using the modulus % operator.
    ruby 10 % 3 #=> 1 # because the remainder of 10/3 is 1

Exponents:

  • Exponents can be calculated using the ** operator.
    ruby 2 ** 3 #=> 8 # because 2 to the third power, or 2 * 2 * 2 = 8

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