Sat math Essentials



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SAT Math Essentials

common multiples
multiples shared by two or more numbers
commutative property of addition
when using addition, the order of the addends does not affect the sum.
Glossary
2 4 5


commutative property of multiplication
when using multiplication, the order of the factors does not affect the
product.
complementary angles
two angles whose sum is 90°
composite number
a number that has more than two factors
congruent
identical in shape and size; the geometric symbol for 
congruent to
is
.
coordinate plane
a grid divided into four quadrants by both a horizontal 
x
-axis and a vertical 
y
-axis 
coordinate points
points located on a coordinate plane
cross product
a product of the numerator of one fraction and the denominator of a second fraction
denominator
the bottom number in a fraction. 7 is the denominator of
3
7
.
diagonal
a line segment between two non-adjacent vertices of a polygon
diameter
a chord that passes through the center of a circle—the longest line you can draw in a circle. The term
is used not only for this line segment, but also for its length.
difference
the result of subtracting one number from another
distributive property
when multiplying a sum (or a difference) by a third number, you can multiply each of the
first two numbers by the third number and then add (or subtract) the products.
dividend
a number that is divided by another number
divisor
a number that is divided into another number
domain
all the 
x
values of a function

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