Pre-Algebra Chapter 2 Vocabulary

In repeating decimals, the line or bar placed over the digits that repeat.

• Bar Notation

• Repeating Decimals

• Terminating Decimals

• Radical Sign

The set of numbers used for counting. What is taught at a very young age.

• Natural Numbers

• Whole Numbers

• Integers

• Irrational Numbers

The set of numbers used for counting, including zero.

• Natural Numbers

• Whole Numbers

• Integers

• Irrational Numbers

The set of whole numbers and their opposites.

• Natural Numbers

• Whole Numbers

• Integers

• Irrational Numbers

A number that cannot be expressed as the ratio  $\frac{a}{b}$  

• Natural Numbers

• Whole Numbers

• Integers

• Irrational Numbers

A decimal in which 1 or more digits repeat.

• Repeating Decimals

• Bar Notation

• Terminating Decimals

• Integers

A decimal where the repeating decimal is zero (division stops).

• Repeating Decimals

• Bar Notation

• Terminating Decimals

• Integers

A number that can be expressed as the ratio  $\frac{a}{b}$  

• Natural Numbers

• Whole Numbers

• Rational Numbers

• Irrational Numbers

One of the two equal factors of a number.

• Square Root

• Radical Sign

• Perfect Square

• Inverse Operations

A number whose square root is a whole number.

• Square Root

• Radical Sign

• Perfect Square

• Inverse Operations