*Commutative Property of Addition When two numbers are added, the sum is
the same regardless of the order of the addends. For example 4 + 2 = 2 + 4
Compare To decide if one number is greater than, less than, or equal to another
number . Can also be used to tell how shapes are alike or different.
Compose To put together basic elements. (e.g., Numbers or geometric shapes.)
Composite shape
a figure that is made from two or more geometric figures
Cone A geometric solid with a circular base and curved surface.
Count back A way to subtract
Count on A way to add.
Count up A way to determine a difference. Count up from the smaller to the
larger number
Cube A solid figure with six square faces
Curved surface A rounded surface.
Cylinder A geometric solid with two circular bases and a curved surface.
Data A collection of information.
Decompose To separate into basic elements. (e.g., Numbers or geometric shapes.)
Difference The result when one number is subtracted from another.
Different Not the same; unlike
Digit Any of the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9.
Digital clock uses only numerals to show the time
Doubles any of the addition facts that have two of the same numbers
Doubles minus 1 An Addition strategy building on the Doubles strategy. When