8th Grade: Stranger Things Benchmark Practice

​Stranger Things
At Wilbanks Middle School

By Mr. Williams

Your Mission

It is Monday, and you arrive to school early in the morning. You realize nobody else is there, but there is a sound coming from the end of the 8th grade hallway in Mr. William's classroom.

...

As you walk into the classroom, you see that there is a portal to the upside down, but you don't want to go in at first. As you look around the rest of the classroom, you see a message on the white board.

...

It is a message from Mr. Williams that says: "Vecna has taken all of the 8th grade math teachers to the upside down to keep you from being able to study for your benchmark this week. You must save us and destroy Vecna in order for everything to be back to normal. Good luck."

...

You take one last look around, then you go into the portal to the upside down. You must complete all of the questions to complete your quest and save the 8th grade math teachers. Good luck...

Multiple Choice

0.8 is a rational number

• True
• False

Multiple Choice

What type of number is π ?

• Rational
• Irrational

Multiple Choice

√7

• Rational 
• Irrational

Multiple Choice

$$365^0=$$  

• 0

• 1

• 365

• $$\frac{1}{365}$$  

Multiple Choice

$$x^3\cdot x^4\ =$$  

• $$x^{12\ }$$  

• $$x^{-1}$$  

• $$x^7$$  

• $$x^{34}$$  

Multiple Choice

$$\frac{x^9}{x^4}$$  =

• $$x^{13}$$  

• $$x^{36}$$  

• $$x^5$$  

• $$x^{-5}$$  

Multiple Choice

The half-life of Uranium is 2.5 x 10⁵ years. What is this in standard form?

• 2500000

• 250

• 25000

• 250000

Multiple Choice

Convert 0.0000037 to Scientific Notation.

• .37 x 10^-7

• 3.7 x 10^-6

• 37 x 10^-5

• 370 x 10^-4

Multiple Choice

What is the coefficient?

$$7x+5^3$$  

• 7

• x

• 5

• 3

Multiple Choice

What is the Variable?

$$7^2+x-5$$  

• 7

• 2

• x

• 5

Multiple Choice

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

Multiple Choice

The Frederick County Fair costs $15.00 to get in and $2.50 per ride, while the Montgomery County Fair costs $10.00 to get in and $3.00 per ride. Which equations could be used to determine how many rides you would need to go on for both fairs to be of equal value?

• 15x + 2.5 = 10x + 3

• 15 - 2.5x = 10 - 3x

• 15 + 2.5x = 10 + 3x

• 15 - 10 = 2.5x + 3x

Multiple Choice

Solve for y:

5x + y = 16

• y = -5x + 16

• y = 5x + 16

• y = 5y - 16

• y = -5x - 16

Multiple Choice

Solve for x.

z = xy

• x = ^z/_y

• x = ^y/_z

• x = yz

• x = z - y

Multiple Choice

A microgram is equal to 1 x 10 ^-6 grams. How many times greater than a microgram is 1 x 10² grams? 

• 1 x 10^-8
• 1 x 10^-4
• 1 x 10⁴
• 1 x 10⁸

Multiple Choice

The mean distance from the sun to Earth is 9.29 x 10⁷ miles. Jupiter's mean distance from the sun is 4.8388 x 10⁸ miles. What is the difference between these two distances in miles? 

• 4.3092 x 10¹
• 3.9098 x 10⁷
• 3.9098 x 10⁸
• 5.7678 x 10⁸

Multiple Choice

Which of the following is a perfect square?

• 10

• 25

• 50

• 89

Multiple Choice

Between which two whole numbers is the
√5?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 5

Multiple Choice

Find the value of "c"

• c = 8

• c = 10

• c = √52

• c = √20

Multiple Choice

What is the length of the hypotenuse in the triangle shown?

• 3

• 4

• 5

• 8

Multiple Choice

The Pythagorean Theorem is
a² + b³ = c⁴

• false
• true

Multiple Choice

The Pythagorean Theorem ONLY works on which triangle? 

• obtuse
• scalene
• isosceles
• right

Multiple Choice

Find the volume of the figure.

• 150.72 cm³
• 75.36 cm³
• 452.16 cm³
• 151 cm³

Multiple Choice

Find the volume of the cylinder.

• 4239
• 1696
• 1130
• 565

Multiple Choice

Find the volume of the sphere. Use 3.14 for Pi.

Round to the nearest tenth.

• 5572.5 cm³

• 506.6 cm³

• 126.7 cm³

• 1393.1 cm³

Multiple Choice

• Function
• Not a Function

Multiple Choice

Is this mapping a function or not a function? 

• Function
• Not a Function

Multiple Choice

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

Multiple Choice

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

Multiple Choice

Which of these is NOT the same

• Range
• Input
• Dependent Value
• Y-Value

Multiple Choice

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Multiple Choice

What is a characteristic of a linear equation?

• Repeating x values

• Graphs as a curved line

• Graphs as a straight line

• Intersects a vertical line at 2 or more points

Multiple Select

What are the two ways to identify a function?

• Check for repeating x values

• Check for repeating y values

• Check for matching ordered pairs

• Vertical line test

Multiple Choice

Solve the inequality: 2x - 7 < 15

• x < 11

• x > 18

• x > 11

• x < 4

Multiple Choice

Solve the inequality: 3x + 5 > 10

• x > 10

• x > 5/3

• x = 5/3

• x < 5/3

Multiple Choice

Solve the inequality: 4(-x - 3) ≥ 20

• x ≤ 8

• x ≥ -8

• x ≥ 8

• x ≤ -8

Multiple Choice

What inequality does the number line graph represent?

• x≥ 3
• x > 3
• x < -3
• x ≤ 3