Positive Numbers

Numbers greater than zero.

Negative Numbers

Numbers less than zero.

Opposites

Two numbers who sum is zero.

Round

To estimate the to the ten, hundred and up

Real Numbers

Any numbers that include rational numbers, integers, and fractions.

Integers

The set of counting number, their opposites, and zero: the members of the set {...,-2,-1,1,2,...}

Whole Numbers

The member of the set {0,1,2,3,4,...}

Natural Numbers

Any number

Sequences 

A list of numbers arranged according to a certain rule

Commutative Property

Changing the order of numbers in a addition or multiplication doesn't change the answer.

Less Than

A number with lesser value than the number that is being compared to it.

Greater Than

A number with greater value in which of the number is it being compared with.

Odd Numbers

Numbers that have a remainder of 1 when divided by 2; the members of the set {..., -3,-1,1,3...}

Even Numbers

Esitmate

Rounding

Place Value

Exponent

Expanding Notation

Standard Notation

Divisibility

Divisibility Rules

Prime Numbers