AnswersFL-1205070-MJ Grade 8 Pre-Algebra Summer 2026Unit Test

Unit Test — Unit test Answers

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1
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What is the difference? Express the answer in scientific notation.

Question illustration
A
0.54 times 10 Superscript negative 16
Option A
B
5.4 times 10 Superscript negative 9
Option B
C
0.54 times 10 Superscript negative 8
Option C
D
5.4 times 10 Superscript negative 7
Option D
2
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Which statements are true regarding the expression below? Check all that apply.

Question illustration
A
The last factor, 8, with no exponent shown is equivalent to .
Option A
B
The sum of the exponents is .
Option B
C
The value of the expression is .
Option C
D
The value of the expression is .
Option D
E
An equivalent expression is .
Option E
F
An equivalent expression is .
Option F
3

What is the value of this expression when and ?

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Answer not available
4

Which is the simplified form of ?

Question illustration
A
p
B
StartFraction 1 Over p EndFraction
Option B
C
0
D
1
5

Brad measured the length of an object as cm. Which items might he have measured? Check all that apply.

Question illustration
A
length of a city block
B
length of a city park
C
height of a person
D
distance across a city
E
height of an apple tree
F
width of a screen in a theater
G
depth of water in a swimming pool
6

Tanisha and Neal are simplifying the same expression . Tanisha’s WorkNeal’s WorkWhich statements are true about each person’s work? Select the four correct answer choices .

Question illustration
A
Tanisha correctly simplified the power of a product in her first step by adding exponents.
B
Tanisha’s next step is to apply the power of a product.
C
Tanisha’s work is correct.
D
Neal’s next step is to apply the quotient of powers.
E
The correct simplified answer is .
Option E
F
Neal’s work is correct.
7

Which could be the first step in simplifying this expression? Check all that apply.

Question illustration
A
(x Superscript negative 18 Baseline) squared
Option A
B
(x Superscript negative 3 Baseline) squared
Option B
C
(x Superscript negative 2 Baseline) squared
Option C
D
x Superscript 6 Baseline x Superscript negative 12 Baseline
Option D
E
x Superscript 5 Baseline x Superscript negative 4
Option E
8

Which expressions are equivalent to ? Check all that apply.

Question illustration
A
3 Superscript negative 6
Option A
B
6 Superscript negative 2
Option B
C
StartFraction 6 cubed Over 6 Superscript 5 EndFraction
Option C
D
StartFraction 6 squared Over 6 Superscript negative 1 EndFraction
Option D
E
6 times 6 Superscript negative 2
Option E
F
6 Superscript negative 9 Baseline times 6 Superscript 7
Option F
9

What is the value of ?

Question illustration
Answer not available
10

Selena is simplifying the expression . She wrote .What number should Selena put in the box?

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Answer not available
11

Enrique is measuring the mass of a flower petal. Which unit of measurement should he use to eliminate the need to write the value in scientific notation?

A
grams
B
centimeters
C
liters
D
kilograms
12

What is the value of t in this equation?

Question illustration
Answer not available
13

As the planets revolve around the Sun, sometimes Earth is between the Sun and Mars (Point A) and sometimes the Sun is between Earth and Mars (Point B). The distance from the Sun to Mars is approximately km, and the distance from the Sun to Earth is approximately km. Which statements are true? Check all that apply.

Question illustration
A
When they are on the same side of the Sun, the distance between Mars and Earth is approximately kilometers.
Option A
B
When they are on the same side of the Sun, the distance between Mars and Earth is approximately kilometers.
Option B
C
When they are on the same side of the Sun, the distance between Mars and Earth is approximately kilometers.
Option C
D
When they are on opposites sides of the Sun, the distance between Mars and Earth is approximately kilometers.
Option D
E
When they are on opposites sides of the Sun, the distance between Mars and Earth is approximately kilometers.
Option E
14

If c is a number with no exponent, what is the value of c in the equation below?

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Answer not available
15

What is the value of b in the equation below?

Question illustration
A
Negative 10
Option A
B
Negative 6
Option B
C
9
D
16

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