# Saxon math les 11 - 15

## Terms

undefined, object
copy deck
line
a straight collection of points extending in opposite directions without end
line segment
a part of a line with two distinct endpoints
horizontal
side to side
product
the result of multiplication
point
an exact position (on a line or plane)
number line
a line for representing and graphing numbers. Each point on the line corresponds to a number
integers
the set of counting numbers, their opposites, and zero ( ...-2, -1, 0, 1, 2 ...)
ray
a part of a line that begins at a point and continues without end in one direction
commutative property of multiplication
changing the order of factors does not change their product (a x b = b x a)
multiple
a product of a counting number and another number
property of zero for multiplication
zero times any number is 0
vertical
upright; up and down
factors
any of the numbers multiplied in a multiplication problem
geometry
a major branch of mathematics that deals with shapes, sizes & other properties of figures
oblique
slanted or sloping; diagonal
identity property of multiplication
the product of any number and 1 is equal to the original number (a x 1 = a)
negative numbers
numbers less than zero

17