Download Worksheet: Evaluating Algebraic Expressions

Name: ____________________
Date: ____________________
Algebraic Expressions
Objective: Apply the order of operations to evaluate algebraic expressions for given
replacement values of the variables.
1. What is the value of a  (18  a)  b if a  4 and b 
2. What is the value of 5(9y  x ) if x  3 and y 
1
?
7
1
?
3
3. The midpoint between 2 real numbers x and y on a number line may be
determined by using the expression:
x  15 and y  3 ?
(x  y )
. What is the midpoint when
2
4. A toy rocket is launched with an initial velocity of 80 feet per second. Its height
after t seconds in flight is given by the expression 112t  16t . What is the
rocket’s height after 5 seconds?
2
5. What is the value of 4  (x  y )  7 if x  0.3 and y  1.2 ?
6. Using the formula W 
11(h  40)
, where W is weight in pounds and h is
2
height in inches, a person can find his recommended weight based on their height.
What is your recommended weight using your height?
7. What is the value of 6(x ) if x  14 and y  4 ?
y
8. What is the area and perimeter of a rectangle that has a length of 9 inches and a
width of 4 inches?
9. The formula for volume of a rectangular prism is v  lwh . Using the figures
below determine the volume of the figures. Does the change in orientation of the
figure change the volume? What property justifies your answer?