Answers FL-1205070-MJ Grade 8 Pre-Algebra Summer 2026Unit Test

Unit Test Answers

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

0.54 times 10 Superscript negative 16

5.4 times 10 Superscript negative 9

0.54 times 10 Superscript negative 8

5.4 times 10 Superscript negative 7

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Which statements are true regarding the expression below? Check all that apply.

The last factor, 8, with no exponent shown is equivalent to .

The sum of the exponents is .

The value of the expression is .

An equivalent expression is .

An equivalent expression is .

What is the value of this expression when and ?

Answer not available

Which is the simplified form of ?

StartFraction 1 Over p EndFraction

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

length of a city block

length of a city park

height of a person

distance across a city

height of an apple tree

width of a screen in a theater

depth of water in a swimming pool

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 .

Tanisha correctly simplified the power of a product in her first step by adding exponents.

Tanisha’s next step is to apply the power of a product.

Tanisha’s work is correct.

Neal’s next step is to apply the quotient of powers.

The correct simplified answer is .

Neal’s work is correct.

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

(x Superscript negative 18 Baseline) squared

(x Superscript negative 3 Baseline) squared

(x Superscript negative 2 Baseline) squared

x Superscript 6 Baseline x Superscript negative 12 Baseline

x Superscript 5 Baseline x Superscript negative 4

Which expressions are equivalent to ? Check all that apply.

3 Superscript negative 6

6 Superscript negative 2

StartFraction 6 cubed Over 6 Superscript 5 EndFraction

StartFraction 6 squared Over 6 Superscript negative 1 EndFraction

6 times 6 Superscript negative 2

6 Superscript negative 9 Baseline times 6 Superscript 7

What is the value of ?

Answer not available

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

Answer not available

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?

grams

centimeters

liters

kilograms

What is the value of t in this equation?

Answer not available

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.