1. Number Line

●A horizontal or vertical
line representing whole numbers, fractions, and decimals.

2. Whole number

●Any of the numbers 0, 1,
2, 3, 4 and so on.

3. Positive number

●A number that is greater
than 0.

4. Inequality

●A number sentence which
states that two values are unequal.
Example: 6>3, 8< x

Lesson 1.2: Prime
Factorization

Page 16

5. Composite number

●A counting number that has
more than two factors.

6. Factor (of a number)

● A whole number that
divides evenly into a whole number.
Example: The factors of 10
are 1, 2, 5, and 10.

7. Prime number

●A counting number that has
exactly two different factors, 1 and itself.
Example: 5 is a prime
number, because its only factors are 1 and 5.

8. Prime factor

●A factor of a number that
is also a prime number.

Lesson 1.3 Common Factors and Multiples

Page 19

9. Common factor

●A number that is a factor
of two or more whole numbers

10. Greatest Common Factor

● The common factor of two
or more numbers that has the greatest value

11. Common multiple

●A number that is a
multiple of two or more whole numbers

12. Multiple

●The product of a whole
number and any whole number.
Example: 16 is a multiple
of 4

13. Least common multiple

●The common multiple of two
or more numbers that has the least value

Lesson 1.4 Squares and Square Roots

Page 29

14. Square (of a number)

●The value of a number
raised to an exponent of 2

15. Exponent

●The number to which the
base is raised

16. Base (of an exponent)

● tells what number is being multiplied

17. Perfect square

● The square of a whole
number

18. Square root

●A number which, when
squared, is equal to a given number

Lesson 1.5 Cubes and Cube Roots

Page 33

19. Cube (of a number)

●The value of the number
raised to an exponent of 3

20. Perfect cube

The cube of a whole number

21. Cube root

A number which, when cubed,
is equal to a given number

22. Numerical expression

A collection of numbers and
operations symbols that represent a single value
