The number system
3/8 ÷ 3/5 =
15/24 OR 5/8
the opposite of –30°
30°
Find the area of a rectangle with the length of 8cm and width of 7cm.
56cm2
Evaluate:
23 — 7 + 2(4 — 1)
7
The following is an example of what type of ratio:
There are 4 bananas for every 10 people.
a. part-to-part
b. part-to-whole
part to part
Find the least common multiple (LCM) of 12 and 18
36
What is the value of –(–2.4)
2.4
What is the area of a parallelogram with a base of 10inches and a height of 16inches
160 inches2
Choose the value that makes this equation true.
x * 3 = 4(60 — 54)
a) x = 8
b) x = 9
c) x = 7
x=8
In her aquarium, Valerie has 4 tetras for every 10 goldfish. What is the ratio of tetras to goldfish?
4:10
Find the greatest common factor (GCF) of 18 and 126
18
The deep sea diver rested at 75 feet below sea level. How is the depth’s absolute value represented?
A. |75| feet
B. |+75| feet
C. —75 feet
D. |—75| feet
D. |—75| feet
Find the area of a triangle whose base is 12inches and height is 3 inches.
18 inches2
40 = y (40 ÷ 20) 5
a) y = 8
b) y = 6
c) y = 4
C) y=4
80% of the class finished a project early. If 28 students finished early, how many students are in the class?
35
Which numbers list the set of common prime factors for 36 and 48?
a. 2, 2, 3
b. 3, 4
c. 1, 2, 3, 6
Which list shows the absolute values in order from greatest to least?
a. |100|, |—25|, |14|, |—6|
b. |—25|, |—6|, |14|, |100|
c. |—6|, |14|, |—25|, |100|
a.|100|, |—25|, |14|, |—6|
Find the area of a trapezoid with a bottom base of 12 feet, top base of 8 feet, and height of 2 feet.
72 ft2
Select the equation that is not equivalent to 9(m + 3).
a. 9m + (9 × 3)
b. 9m + 27
c. 9m + 12
c. 9m + 12
Moises needs 52 cups of milk. How many gallons is that? (1 gallon = 16 cups)
B 3.25 gallons
Jeff incorrectly calculated the following equation. This is his work. What should be the correct answer?
(2 × $19.50) + (2 × $14.50)= $41.90
68
Find the statement that is FALSE:
a. 250 feet above sea level = +250
b. 83 degrees above zero = —83
c. earned 1500 points = +1500
b. 83 degrees above zero = —83
Find the surface area of a cube if the sides all measure 3 inches.
54 inches2
A student incorrectly solved the following expression. Which step was the first mistake?
y = 4, evaluate (5 — 2)2 — 3 ∙ y
Step 1: (5 — 2)2 — 3 ∙ 4
Step 2: (3)2 — 3 ∙ 4
Step 3: 9 — 3 ∙ 4
Step 4: 6 ∙ 4
Answer: 24
Step 4
Laser tag costs $5 for 10 minutes of play. Identify all the unit rates.
a. 5 minutes of play for $1
b. $1 per minute of play
c. $0.50 per minute of play
d. 2 minutes of play for $1
c. $0.50 per minute of play
d. 2 minutes of play for $1