Arithmetic/Introduction to Operations

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There are four basic operators, which are used to work with numbers for uses besides counting. They are:

  • + addition
  • - subtraction
  • × multiplication (The symbol * is also used to multiply)
  • ÷ division (The symbol / is also used to divide)

Addition[edit]

Addition is the summation of two numbers. For example, 1 + 2 = 3.

Subtraction[edit]

Subtraction is the opposite of addition. It is the taking away of one number from another. For example, 2 - 1 = 1

Multiplication[edit]

Multiplication is the adding of a number a certain number of times. So 2 *1 = 2, 2 * 2 = 2 + 2 = 4, 2 * 3 = 2 + 2 + 2 = 6, etc.

Division[edit]

Division is the splitting of a number into a number of equal parts. For example, 6 ÷ 2 = 3.