Ch 1 Vocabulary (Pre-Algebra)

the answer to a subtraction problem

• quotient

• product

• difference

• sum

common words that indicate different operations

• terms

• operations

• factors

• exponents

contains a combination of numbers and operations such as addition, subtraction, multiplication, and division

• numerical expression

• algebraic expression

• verbal expression

• math expression

to find a numerical value

• operation

• express

• test

• evaluate

the rules to follow when evaluating an expression with more than one operation

• math rules

• expression order

• order of operations

• order of evaluations

a branch of mathematics that uses symbols

• algebra

• pre-algebra

• operations

• operator

a letter or symbol used to represent an unknown value

• variable

• letter

• x

• symbol

an expression that contains at least one variable and at least one mathematical operation

• irrational request

• variable expression

• numerical expression

• algebraic expression

the first step in translating a verbal phrase into an algebraic expression --- choose a variable and a quantity for the variable to represent

• defining a problem

• defining a variable

• defining algebra

• defining the letter

If two quantities are equal, then one quantity can be replaced by the other.
For all numbers a and b, if a = b, then a may replaced by b.

• Property of Substitution

• Substitution Rule

• Substitution Property of Equality

• Substitution Rule of Law