Pre-Algebra

A mathematical expression that uses variables, numerals, and operation symbols.

• variable expression
• numerical expression
• long expression
• viable expression

A _________________ is an unknown or a placeholder in algebraic expressions.

• vacillation
• variable
• difference
• inconstant

To avoid confusion, mathematicians have agreed on a(n) ______________________, which are rules that state which numbers are calculated first in an expression.

• mathematical order
• operational firsties
• first calculatory rule
• order of operations

When you replace each variable in an algebraic expression with a number, you _________________ that expression.

• evaluate
• equate
• elongate
• equivocate

_____________________ are numbers on the number line that are the same distance from zero, but in different directions.

• values
• integers
• opposites
• whole numbers

The set of whole numbers and their opposites are known as ___________________.

• Real Numbers
• Integers
• Integrals
• Radical Numbers

A number's distance from zero on a number line is known as its _____________________.

• substitution
• variable
• opposite
• absolute value

Making conclusions based on patterns one observes is known as ____________________.

• conjugation
• conductive logic
• inductive reasoning
• calculation

How many people voted?

• 50

• 25

• 30

• 100

6+(4²-1)

• 13

• 21

• 25

• 9