Chapter 2 Vocabulary

An equation that states that two ratios are equal.

A number only divisible by 1 and itself.

Comparison of two quantities by division

Equations that have the same solution.

Which number is a prime number

An expression always has an equal sign

The numerical factor when a term has a variable.

A factor of two equivalent measures in different units.

A number with more than 2 factors.

In a proportion a/b = c/d, the products ad and bc are equal.

A rate with a denominator of 1 .

Sstates that you can add or multiply regardless of how the numbers are grouped

a. For every real number a ,b, and c: a(b+c)=ab+ac

A symbol, usually a letter, that represents one or more numbers.

A number that shows repeated multiplication.

Operations that undo each other

A mathematical sentence that uses an equal sign.