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| A number greater than 0 that has more than two different factors. The number 9 is a composite number becuase it has three factors: 1, 3, and 9. |
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| A whole number greater than 0 that has exactly two different factors, 1 and itself. 5 is a prime number because its only factors are 1 and 5. |
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| The whole numbers that are multiplied to get a product. In 6 x 3 = 18, 6 and 3 are factors of 18. |
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| An arrangement of objects in equal rows. |
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| The number that tells how many equal factors there are. |
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| A number that is the result of multiplying an integer by itself. Any square number of dots can be arranged in a square array. |
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| A way to show a number as the product of prime factors. The prime factorization of 12 is 2 x 2 x 3. |
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| Changing the order of the addends does not change the sum. Changing the order of the factors does not change the product. |
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| The measure, in square units, of the inside of a plan figure. |
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| An exact location in space represented by a dot. |
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| A set of connected point continuing without end in both directions. |
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| A part of a line with two endpoints. |
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| A part of a line that has one endpoint and goes on forever in one direction. |
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| The point at which two line segments, lines, or rays meet to form an angle. |
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| Lines in the same plane that are always the same distance apart. |
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| Lines that form a right angle. |
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| An angle with a measure less than 90 degrees. |
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| An angle that measures exactly 90 degrees. |
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| An angle with a measure greater than 90 degrees. |
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| An angle with a measure of 180 degrees. |
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| The difference between the greatest number and the least number in a set of numbers. |
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| The number that appears most frequently in a set of numbers. There may be one, more than one, or no mode. |
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