Pre-Alg: Module 2 Vocabulary Quiz

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

• bar notation

• decimal notation

• fraction notation

• bar decimal

A statement or example that shows a conjecture is false.

One of three equal factors of a number.

The opposite of cubing a number.

• Cube Root

• Square Root

• Reciprocal

• Proportional

The set of whole numbers and their opposites.

Pairs of operations that undo each other.

Example: addition and subtraction, or multiplication and division

A number that cannot be expressed as the ratio a/b, where a and b are integers and b is not 0.

• irrational number

• rational number

• prime number

• integer

The set of numbers used for counting.

• natural numbers

• prime numbers

• variables

• integers

A number whose cube root is an integer.

Example: 27, because the cube root is 3.

• perfect cube

• perfect square

• natural number

• repeating decimal

A number whose square root is a whole number.

Example: 25, because the square root is 5.

• perfect square

• negative number

• repeating decimal

• radical sign

The positive square root of a number is the _________ square root.