Algebraic Expressions
Evaluate the expression when x = 7 and y = 4.
8x + 4
What is 60.
Tell which property the statement illustrates.
8 x 3 = 3 x 8
What is the commutative property of multiplication.
Solve mentally by using the distributive property of multiplication.
8 x 26
What is 8(20) + 8(6) = 120+48=168
32 + 24
What is 8( 4 + 3)
A car travels 45 miles on one gallon of gas. Write an algebraic expression to find the distance the car travels using x gallons of gas.
The car uses 10 gallons of gas. How many miles does it travel?
What is 45x
What is 450 miles
8 multiplied by 9
What is 8 x 9
Tell which property the statement illustrates.
0 + x =x
What is the addition property of zero.
Use the distributive property to simplify the expression.
13 (x + 2 + 4)
What is 13x + 78
81 - 72
What is 9(9-8)
The running time in minutes of a TV episode is 40-0.5c where c is the number of commercials aired during the episode. What is the running time of an episode with 10 commercials?
What is 35 minutes
Evaluate the expression when g = 15
56 - g
Tell which property the statement illustrates.
( y + 4.5) + 5.6 = y + ( 4.5 + 5.6)
What is the associative property of addition.
Simplify the expression.
10( 5 - y)
What is 50-5y
Factor the expression using the GCF
27k - 6
What is 3(9k - 2)
Mr. Volk works 8 hours on a weekday and 5 hours on a weekend day.
a.Write an expression for the total hours Mr. Volk works on x weekdays and y weekend days.
b. Use the expression to find the number of hours that Mr. Volk works on 3 weekdays and 2 weekend days.
a. What is 8x + 5y
b. What is 34 hours.
Write the phrase and an expression. Then evalute the expression when x=5 and y = 7.
The product of 6 and a number x.
What is 6x.
What is 30.
Tell which property the statement illustrates.
8 + m = m + 8
What is the commutative property of addition.
Simplify the expression.
5(6 + x - 4)
What is 5x + 10
Factor the expression using the GCF
5x + 60y
What is 5(x + 12y)
The sides of a square each have a length of 14x inches. Write an expression for the perimeter of the square in inches.
What is 4(14x) inches.
Write the phrase as expression and then evaluate the expression when x=7 and y=4.
The quotient of a number y and 2 plus a number x.
What is (y/2) + x
What is 9.
Tell which properties are illustrated by the statement.
(8 + m) + 9 = m + (8 + 9)
What is commutative property of addition and associative property of addition.
Simplify the expression.
8(k + 3) - 3k
What is 5k + 24
Factor the expression using the GCF
12x-6y
What is 6(2x-y)
To find the sales tax on an item, divide the price of the item by 10.
a. Write an algebraic expression to find the sales tax on an item that costs d dollars.
b. Find the sales tax on a couch that costs $550.
a. What is d/10.