Mathematics Vocabulary

Vocabulary used in mathematics k - 6




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Preservation of equality

When performing the same operation with the same value to both sides of the equation the equality is preserved. AB ED Parent Communication

In order for equations to be equivalent, the same operations have to be performed on each side where the value of the variable does not change. E.g., 3n + 1 = 7 and 3n = 6 are equivalent equations because 1 is subtracted from each side in the first equation to make the second equation. This is called ‘preservation of equality’. NewFoundland Grade 6 Math Curriculum Guide, page 108

Variable

A variable is a symbol used to represent:

  • a number in an expression
  • an unknown value in an equation
  • a number or element of a set in a relation connecting two or more sets

(Learn Alberta)

 

Equation

An equation is a statement showing that two mathematical expressions are equal. (Learn Alberta)


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