Pemdas & Exponents
Simplify the expression
(11-7)3 + 2
66
Mrs. Loper assigns 3 new problems each day as well as 7 review problems for homework. If n is the number of new problems, which expression shows the total number of homework problems assigned by Mrs. Loper that day?
a. 3 + 7n b. 3n + 7 c. 3n + 7n
b. 3n + 7
Which inequality represents the following situation?
"It's more than 100 degrees outside!"
a. t < 100 b. t > 100 c. t = 100
b. t > 100
In the expression 7n + 9 which word correctly describes the 7?
A. Variable B. Coefficient
C. Constant D. Exponent
B. Coefficient
Simplify the expression
b + 2b + b
4b
36/4 x 23
72
Jack's cat weighs 5 pounds less than 3 times the weight of Donnie's cat. If Donnie's cat weighs p pounds, how much does Jack's dog weigh?
a. 3p-5 b. 5p-3 c. 5-3p
a. 3p-5
Which inequality represents the following situation?
"There's at least 20 people in our class."
a. p > or = 20 b. p < or = 20 c. p > 20
a. p > or = 20
In the expression 7n + 9 which word correctly describes the 9?
A. Variable B. Coefficient
C. Constant D. Exponent
C. Constant
Simplify the expression
5 (2a + b)
10a + 5b
Simplify the expression
9 (10-7)3 x 62
8,748
Which situation can be represented by the expression 5x-8 ?
a. subtract 5 times a number from 8
b. 8 less than the product of 5 and a number
c. deposit $5 and then withdraw $8 each week
b. 8 less than the product of 5 and a number
Which statement is true for the inequality
n + 7 > 12 ?
a. The number 10 is in the solution set.
b. All numbers less than 5 are in the solution set.
c. All numbers greater than 7 are in the solution set.
a. The number 10 is in the solution set.
What is the quotient of 58,110 and 65?
894
Which expressions are equivalent to 4b?
a. 2b + b + b b. 2 + 2b
c. 4 + b d. 12b - 8
e. b + b + b + b
A, E
Which expression is equivalent to
5/8 x 5/8 x 1/3 x 1/3 x 1/3 ?
a. (5/8)2 + (1/3)3 b. (5/8)2 x (1/3)3
B. (5/8)2 x (1/3)3
Mrs. Loper has been given an estimate to have her classroom repainted. The estimate charges $100 plus an additional $0.25 per square foot. If s represents the square feet, which expression correctly shows the estimate?
a. $100 + $0.25
b. $100s + $0.25s
c. $100 + $0.25s
c. $100 + $0.25s
Morgan earns $9 an hour at her job, and she wants to work at least 20 hours this week. If h represents the hours that Morgan works, which inequality shows the number of hours Morgan needs to work this week?
a. h < or = 9 b. h > or = 9
c. h < or = 20 d. h > or = 20
d. h > or = 20
a. In the expression 15x + 25, 15 is a coefficient.
b. In the expression 15x + 25, 25 is a constant.
c. In the expression 3(4x + 8), 4 is an exponent.
A. True
B. True
C. False
Which expression is equivalent to 15a + 5b?
a. 20ab b. 5 (3a + 1)
c. 5 (3a + b) d. 15a + 5 + b
C. 5 (3a + b)
Which expression is equivalent to
2 (2x + 1) + 3x + 3 ?
a. 4x + 3 b. 4x + 5
c. 7x + 4 d. 7x + 5
d. 7x + 5
Which equation shows the relationship found in the chart below? Hours (h) Gallons (g)
2 3
3 4.5
4 6
a. g = 1.5h b. g = h + 1.5
c. h = 1.5g
a. g = 1.5h
Solve the inequality for y
2.5y < 170
y < 68
Which statement is true about the following equations: 3a + 5b = 12 and 12y + 6z = 3
a. Both equations have a coefficient of 3.
b. Both equations have the same variables.
c. Both equations have the same number of terms.
d. Both equations have a constant term of 12.
c. Both equations have the same number of terms.
Simplify the expression
3(4c + 2) + 2c + 2
14c + 8