Numerical Expressions
What is 2 x 2 x 2 x 2 in exponential form?
24
Which expression represents the phrase "8 less than the product of 6 and a number, x"?
A. 8 -6x
B. 6x - 8
C. (6 + x) - 8
D. 8 - (6 + x)
6x - 8
Karla wrote the equation x ÷ 6 = 12. What value of x makes Karla's equation true?
A. 2
B. 6
C. 36
D. 72
72
Lauren swims at least 24 laps each day. Which inequality shows s, the number of laps Lauren swims each day?
A. s ≥ 24
B. s ≤ 24
C. s > 24
D. s < 24
A. s ≥ 24
Which of the following is equivalent to the expression 6m +3
A. 2(3m+3)
B. 3(2m+1)
C. 3(2m+3)
D. 6(m+3)
B. 3(2m+1)
Evaluate (4 x 3) + 23
20
What is the value of the expression 3z −3
when z = 7?
18
Which situation can be represented by the
expression 1.3x?
A. The total cost of an item that is x dollars more than $1.30
B. The area of a rectangle with side lengths 1.3 and x
C. The amount of change when $1.30 is used to pay for an item costing x dollars
D. The number of square feet in each lot when 1.3 acres is partitioned into x equal sections
B. The area of a rectangle with side lengths 1.3 and x
Graph the inequality x < 1.5.
(open dot at 1.5 with arrow going left)
Do the phrases “38 minus 15” and “15 less than 38” mean the same thing? Explain.
Yes
What is the value of 63 + 7 x 4
244
Write an expression to represent: Seven less
than the product of two and a number x.
2x - 7
Select all the equations where x = 5 is a
solution.
A. 2x +4 = 14
B. 5x = 55
C. 6x +3 = 14
D. 8+3x = 23
E. 6x = 30
F. 5x = 1
A. 2x +4 = 14
D. 8+3x = 23
E. 6x = 30
Amy is flying a plane for the first time. The dispatcher tells her to fly at 500 meters above the ground or higher. Write an inequality to represent the height in meters, h, at which Amy can fly.
h ≥ 500
Use the distributive property to write an expression that is equivalent to the expression below.
5(2x + 7)
10x + 35
Evaluate (2 x 3)2 - 52
11
What is the value of the expression 6c2 - 5d + 8, when c =5 and d=4?
178
Ms. Stone buys groceries for a total of $45.32. She now has $32.25 left. Write an equation that could be used to find out how much money Ms. Stone had before she bought the groceries?
x - $45.32 = $32.25
Simone is going snowboarding tomorrow if the temperature is at most 5oC. Write an inequality to represent the temperatures, t, at which Simone will go snowboarding.
t ≤ 5
The Ferrells save $150 each month for their next summer vacation. Write an equation that they can use to find s, their savings, after m months.
x = 150m
What is the value of 5x3 + 4xy3 when x = 4 and y =3
752
Which expressions are equal to 41 when
evaluated at d=4?
A. 9d + 5
B. 7 + 3d2
C. 10d - 1
D. d3 - 23
A. 9d +5
D. d3 - 23
What operation can be used to find the solution to EACH equation?
A. x + 5 = 9
B. 4x = 20
C. x - 4 =9
A. subtraction
B. division
C. addition
Ricardo has a $50 gift card for an electronics store. He also has a coupon good for $10 off his purchase. Let a represent the amount of merchandise Ricardo can buy from the store using his gift card and coupon. Graph the solution set for a on the number line.
(closed circle at 60 with arrow going left)
Clerk 1 uses the expression 4a + 3g – 2 to find the total. Clerk 2 uses 3g + 4a – 2. Will the totals be the same? Explain.
Apples: $4/bag
Grapes: $3/bag
Today ONLY $2 off
Yes.