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geometry

a major branch of mathematics that deals with shapes, sizes & other properties of figures

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integers

the set of counting numbers, their opposites, and zero ( ...-2, -1, 0, 1, 2 ...)

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line

a straight collection of points extending in opposite directions without end

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line segment

a part of a line with two distinct endpoints

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negative numbers

numbers less than zero

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commutative property of multiplication

changing the order of factors does not change their product (a x b = b x a)

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factors

any of the numbers multiplied in a multiplication problem

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identity property of multiplication

the product of any number and 1 is equal to the original number (a x 1 = a)

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multiple

a product of a counting number and another number

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product

the result of multiplication

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property of zero for multiplication

zero times any number is 0

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vertical

upright; up and down

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oblique

slanted or sloping; diagonal

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ray

a part of a line that begins at a point and continues without end in one direction

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point

an exact position (on a line or plane)

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number line

a line for representing and graphing numbers. Each point on the line corresponds to a number

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