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Math Vocabulary

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**The answer to an addition (+) problem**

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SUM

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**The answer to a subtraction (-) problem**

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DIFFERENCE

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**The answer to a multiplication (x) problem**

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PRODUCT

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**The answer to a division problem**

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QUOTIENT

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FACTORS Numbers that will evenly divide into another number. (numbers you can multiply together to get another number) Example: factors of 12: 1, 2, 3, 4, 6, (1 x 12, 2 x 6, 3 x 4)

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Prime Number A whole number greater than one that has ONLY TWO factors; 1 and itself Examples: 2, 3, 5, 7, 11, 13, 17, ...

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Composite Number A number that has MORE than TWO factors. (there is more than one way to multiply to get that number) Examples: x 9, 3 x 3

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**Greatest Common Factor (GCF)**

The biggest factor that two or more numbers has in common. Examples: 12: 1, 2, 3, 4, 6, 12 24: 1, 2, 3, 4, 6, 12, 24 The GCF of 12 and 24 is 12.

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**Least Common Multiple (LCM)**

Smallest number that is a multiple of two or more numbers. The LCM of 3 and 4 is 12. 3: 3, 6, 9, 12 4: 4, 8, 12, 16

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**Parts of a Fraction Top number is called NUMERATOR**

Bottom number is called DENOMINATOR

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Parallel Lines Lines that are always the same distance apart. They will NEVER touch!

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Perpendicular Lines When two lines intersect to form a right angle (90o)

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**Perimeter The distance around the outside of a shape.**

To find the perimeter, ADD the length of all sides.

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**AREA Length Width The amount of space INSIDE a shape.**

To find the AREA, multiply LENGTH by WIDTH. Length Width

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Mrs. Walker 4th grade math

Mrs. Walker 4th grade math

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