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29 Cards in this Set
- Front
- Back
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ACUTE ANGLE |
AN ANGLE WITH A MEASURE OF LESS THAN A RIGHT ANGLE |
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ACUTE TRIANGLE |
A triangle in which each of the three angles is acute. |
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Addend |
A number to be added in an addition expression. In 7 + 4 + 8, the numbers 7, 4, and 8 are addends |
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A.M |
The time between 12:00 midnight and 12:00 noon. |
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Angle |
A figure that is formed by two rays with the same endpoint. |
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Area |
The number of square units that cover a surface with no overlap. |
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Array |
An arrangement of objects, pictures, or numbers in columns and rows. |
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Associative Property of Addition |
Changing the grouping of addends does not change their sum. It is also called the Grouping Property of Addition. Example: For all numbers a, b and c, a + (b + c) = (a + b) + c |
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Associative Property of Multiplication |
Changing the grouping of factors does not change their product. It is also called the Grouping Property of Multiplication. Example: For all numbers a, b and c, a x (b x c) = (a x b) x c. |
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Average |
The number found by dividing the sum of a group of numbers by the number of addends. Also known as the mean. |
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Bar graph |
A graph in which information is shown by means of rectangular bars. |
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Base ten |
A place-value system in which each digit has a value that is ten times greater than the digit to the right of it. |
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Capacity |
The amount a container can hold. |
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Chord |
Any segment within a circle that connects two points on the circle. |
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Circle |
A closed figure in which every point is the same distance from a given point called the center of the circle. |
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Circle graph |
A graph used for data that are parts of a whole. |
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Commutative Property of Addition |
Changing the order of addends does not change their sum. It is also called the Order Property of Addition. Example: For all numbers a and b, a +b = b + a. |
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Commutative Property of Multiplication |
Changing the order of factors does not change their product. It is also called the Order Property of Multiplication. Example: For all numbers a and b, a x b = b x a. |
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Compensation |
Adding one amount to an addend and subtracting an equal amount from another addend to add mentally. |
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Composite number |
A whole number that has more than two factors. |
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Cone |
A solid that has a circular base and a surface from a boundary of the base to the vertex. |
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Coordinates |
An ordered pair of numbers that locates a point in the coordinate plane with reference to the x-axis and y-axis. |
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Cube |
A solid figure that has six square faces of equal size. |
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Cylinder |
A solid with two circular faces that are congruent and a cylindrical surface connecting the two faces. |
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Data |
A set of numbers or pieces of information. |
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Decimal |
A number with one or more digits to the right of a decimal point. |
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Decimal equivalent |
A decimal that is equal to a whole number, a fraction, or another decimal. |
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Decimal point |
A symbol used to separate the ones and tenths places in a decimal. |
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Degrees |
A unit used to describe angle measures and also temperature. Its symbol is 0. |
