AnswersFL-1205070-MJ Grade 8 Pre-Algebra Summer 2026Introduction to Scientific Notation

Operations with Scientific Notation Answers

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1
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What is in scientific notation?

Question illustration
A
5.291 times 10 Superscript negative 64
Option A
B
5.291 times 10 Superscript negative 4
Option B
C
5.291 times 10 Superscript 12
Option C
D
5.291 times 10 Superscript 20
Option D
2
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When evaluating , what will be the exponent of 10 in the quotient?

Question illustration
A
3
B
4
C
8
D
16
3

What is the value of the expression, written in standard form?

Question illustration
Answer not available
4

A 747 airplane weighs about 600,000 pounds. It can also be expressed as approximately tons. If there are 2,000 pounds in 1 ton, which is the most reasonable value of n?

Question illustration
A
–2
B
–1
C
2
D
4
5

Annabelle measured her bedroom as 11 ft 13 ft, which is 143 square feet. She wants to change the units to square inches. Which statements should she consider when converting? Check all that apply.

Question illustration
A
There are 12 inches in every foot.
B
The length and width will change by a factor of .
Option B
C
The length and width will change by a factor of .
Option C
D
The area will change by a factor of , since area is length times width.
Option D
E
The area will change by a factor of , since both the length and width increase by that factor.
Option E
6

The quotient of and a number n results in . What is the value of n?

Question illustration
A
1.5 times 10 Superscript negative 18
Option A
B
1.5 times 10 Superscript negative 3
Option B
C
1.5 times 10 Superscript 3
Option C
D
1.5 times 10 Superscript 18
Option D
7

Cassie is measuring the volume of her fish tank to find the amount of water needed to fill it. Which unit of measurement should she use to eliminate the need to write the value in scientific notation?

A
teaspoons
B
inches
C
gallons
D
pounds
8

What is the value of in scientific notation?

Question illustration
A
2.226 times 10 Superscript 6
Option A
B
22.26 times 10 Superscript 7
Option B
C
2.226 times 10 Superscript 8
Option C
D
22.26 times 10 Superscript 12
Option D
9

Ruchi measured the area of her kitchen as square units. When she recorded the area, she wrote square feet. Which statement about her labeling of the units is true?

Question illustration
A
She is correct because dimensions of rooms must always be measured in feet and area would be square feet.
B
She is correct because ft is equivalent to 2, 810 ft, which is an average size for a kitchen since area is always so much more than length.
Option B
C
She is incorrect because is around 30,000 so the units must be smaller than feet. She most likely measured in inches.
Option C
D
She is incorrect because 2.81 is a small number. She probably measured in yards to arrive at such a small value.
10

When evaluating , what will be the exponent of 10 in the product?

Question illustration
A
3
B
5
C
8
D
15

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