Numbers that can be divided by 2 without a remainder

The answer to a division problem

Changing the order of addends does not change their sum

An angle that measures 180 degrees

Two lines that intersect at right angles

The counting numbers and the number zero

The amount left over after division

Zero times any number equals zero

To share a point or points

A unit for measuring angles

A product of a counting number and another number

A number sentence with an equal sign

The sum of zero and any number is equal to the initial number

A flat surface that has no boundaries

A triangle with three sides of different lengths

Operations that "undo" one another

The first number in a subtraction problem

The grouping of factors does not affect the product

A point of an angle, polygon, or solid where two or more lines or line segments meet.

A tool for measuring angles

253 = 200 + 50 + 3
This is an example of ___________

A pair of symbols used to set apart parts of an expression so that those parts may be evaluated first

The product of any number and 1 is equal to the initial number

A triangle with at least 2 sides of equal length

Any four-sided polygon