Subtraction vs. Substraction — Which is Correct Spelling?

Which is correct: Subtraction or Substraction

How to spell Subtraction?

Correct Spelling

Substraction

Incorrect Spelling

Subtraction Definitions

The arithmetic operation of finding the difference between two quantities or numbers.
Subtraction is an arithmetic operation that represents the operation of removing objects from a collection. Subtraction is signified by the minus sign, −.
The act or process of subtracting; deduction.
The process of subtracting a number from another.
A calculation involving subtracting.
The teacher has set us ten subtractions to do by tomorrow.
The removal of something.
The subtraction of the wealth from the economy will result in recession.
The act or operation of subtracting or taking away a part.
The taking of a lesser number or quantity from a greater of the same kind or denomination; an operation for finding the difference between two numbers or quantities.
The withdrawing or withholding from a person of some right to which he is entitled by law.
An arithmetic operation in which the difference between two numbers is calculated;
The subtraction of three from four leaves one
Four minus three equals one
The act of subtracting (removing a part from the whole);
He complained about the subtraction of money from their paychecks