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| An angle with a measure less than 90°. |
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| To combine, put together two or more quantities |
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| Problems that ask how much more (or less) one amount is than another. |
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| A step-by-step method for computing. |
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| Two rays that share an endpoint. |
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| The measure of the size of an angle. It tells how far one side is turned from the other side. A one degree angle turns through 1/360 of a full circle. |
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| Part of a circle between any two of its points. |
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| The measure, in square units, of the inside of a plane figure. |
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| A model of multiplication that shows each place value product. |
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| An arrangement of objects in equal rows. |
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| Associative Property of Addition |
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Definition
| Changing the grouping of three or more addends does not change the sum. |
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| Associative Property of Multiplication |
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Definition
| Changing the grouping of three or more factors does not change the product. |
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| A characteristic of an object, such as color, shape, size, etc. |
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| Fractions that are commonly used for estimation. |
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| Capacity refers to the amount of liquid a container can hold. |
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| A metric unit of length equal to 0.01 of a meter. |
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| A plane figure with all points the same distance from a fixed point called a center. |
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| To sort into categories or to arrange into groups by attributes. |
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Definition
For two or more fractions, a common denominator is a common
multiple of the denominators. |
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Term
| Commutative Property of Addition |
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Definition
| Changing the order of the addends does not change the sum. |
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| Commutative Property of Multiplication |
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Definition
| Changing the order of the factors does not change the product. |
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| To decide if one number is greater than, less than, or equal to. |
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| To put together components or basic elements. |
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| A number greater than 0 that has more than two different factors. |
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| Having exactly the same size and shape. |
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A customary unit of capacity.
1 cup = 8 fluid ounces. |
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A system of measurement used in the U.S. The system includes
units for measuring length, capacity, and weight. |
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| A collection of information gathered for a purpose. Data may be in the form of either words or numbers. |
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| A number with one or more digits to the right of a decimal point. |
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| A number containing a decimal point. |
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| A dot (.) separating the whole number from the fraction in decimal notation. |
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| To separate into components or basic elements. |
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| A unit for measuring angles. Based on dividing one complete circle into 360 equal parts. |
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| The quantity below the line in a fraction. It tells how many equal parts are in the whole. |
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| Any of the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. |
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| The amount that remains after one quantity is subtracted from another. |
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| When one of the factors of a product is a sum, multiplying each addend before adding does not change the product. |
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Definition
| To separate into equal groups and find the number in each group or the number of groups. |
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| A number that is divided by another number. |
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| The number by which another number is divided. |
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| A point at either end of a line segment, or a point at one end of a ray. |
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