下面是为大家准备的4道SAT考试数学选择题练习题。同学们在备考SAT数学的过程中，一定要加强习题的练习，熟练到能充分理解题意，争取得到满分。
1.
In the triangles above, 
(A) 
(B) 
(C) 
(D) 
(E) 
2.
What is the area of the triangle in the figure above?
(A)
(B)
(C)
(D)
(E)
3.Milk costs
cents per half-gallon and
cents per gallon. If a gallon of milk costs
cents less than
half-gallons, which of the following equations must be true?
(A)
(B)
(C)
(D)
(E)
4.Add
to
and then subtract
from the sum. If
is a positive integer, the result must be an integer multiple of
(A)
(B)
(C)
(D)
(E)
参考答案及解析：
1.The correct answer is C
Explanation
To evaluate the expression 
, it is necessary to determine the values of 
and
. Since the sum of the measures of the angles of any triangle is 
degrees, and a right angle has measure 
degrees, the value of 
can be found by solving the equation 
. This yields 
. The value of 
can be found by solving the equation 
. This yields 
. Finally, the values for 
and 
are substituted into the expression 
to obtain 
.
2.The correct answer is B
Explanation
Figures in a Coordinate Plane
The figure provides all the information you need to answer the question.
What Is the Question Asking?
You are asked to figure out the area of a triangle that is defined by the points in a coordinate plane.
What Do You Know?
The triangle in the figure is a right triangle with the right angle at the lower left.
Because it is a right triangle, its base and height are the two sides that form the right angle.
The area of a triangle is
.
The base of the triangle extends from point
to point
. So it is
units long.
The height of the triangle extends from point
to point
. So it is
units long.
3.The correct answer is D
Explanation
The cost of a gallon of milk 
is equal to 
cents less than the cost of 
half-gallons 
. This can be written algebraically as 
. Subtracting 
from both sides of the equation yields
.
4.The correct answer is B
Explanation
The mathematical expression given in the question is
, which is equivalent to
. The expression
can be factored as
. For every positive integer
,
must be a multiple of
. If
, then
, which is not an integer multiple of
,
,
, or
. Therefore, the correct answer is
.
以上就是关于4道SAT考试数学选择题练习题及其答案和解析，非常详细。同学们在备考阶段，一定要加强习题的练习以及题意的理解，争取SAT数学满分。
