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

Introduction to Scientific Notation Answers

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1
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Which conversions from scientific notation to standard notation are true? Select the four correct answers.

A
1.71 times 10 Superscript 3 Baseline = 0.00171
Option A
B
8.05 times 10 Superscript 5 Baseline = 805,000
Option B
C
2.4 times 10 Superscript 4 Baseline = negative 24,000
Option C
D
8.25 times 10 Superscript negative 3 Baseline = negative 8,250
Option D
E
7.09 times 10 Superscript negative 6 Baseline = 0.00000709
Option E
F
3.99 times 10 Superscript 5 Baseline = 300,099
Option F
G
8 times 10 Superscript 7 Baseline = 80,000,000
Option G
H
1.03 times 10 Superscript negative 4 Baseline = 0.000103
Option H
2
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Which answer shows written in standard form?

Question illustration
A
0.000845
B
8,450
C
84,500
D
8,450,000
3

Which number is written in scientific notation?

A
4.5 times 10 Superscript negative 3
Option A
B
14.5 times 10 Superscript 2
Option B
C
0.78 times 10 Superscript negative 6
Option C
D
5.7 times 4 Superscript 8
Option D
4

Which statement is correct?

A
(2.06 times 10 Superscript negative 2 Baseline) (1.88 times 10 Superscript negative 1 Baseline) less-than StartFraction 7.69 times 10 Superscript negative 2 Baseline Over 2.3 times 10 Superscript negative 5 Baseline EndFraction
Option A
B
(2.06 times 10 Superscript negative 2 Baseline) (1.88 times 10 Superscript negative 1 Baseline) greater-than-or-equal-to StartFraction 7.69 times 10 Superscript negative 2 Baseline Over 2.3 times 10 Superscript negative 5 Baseline EndFraction
Option B
C
(2.06 times 10 Superscript negative 2 Baseline) (1.88 times 10 Superscript negative 1 Baseline) greater-than StartFraction 7.69 times 10 Superscript negative 2 Baseline Over 2.3 times 10 Superscript negative 5 Baseline EndFraction
Option C
D
(2.06 times 10 Superscript negative 2 Baseline) (1.88 times 10 Superscript negative 1 Baseline) = StartFraction 7.69 times 10 Superscript negative 2 Baseline Over 2.3 times 10 Superscript negative 5 Baseline EndFraction
Option D
5

Which answer shows written in standard form?

Question illustration
A
–0.000009
B
–0.00009
C
0.0009
D
0.00009
6

Kailey wrote 8,912,000 in scientific notation as . Which statement best describes Kailey’s work?

Question illustration
A
Kailey is correct: equals 8,912,000.
Option A
B
Kailey is not correct: the exponent of ten should be negative.
C
Kailey is correct: it is written as a decimal number multiplied by a power of ten.
D
Kailey is not correct: is not written in scientific notation.
Option D
7

A company produces light bulbs each week. Written in scientific notation, which is the best estimate of how many light bulbs the company will make in weeks?

Question illustration
A
light bulbs
Option A
B
light bulbs
Option B
C
light bulbs
Option C
D
light bulbs
Option D
8

A jet flies at a rate of feet per hour. Written in scientific notation, which is the best estimate of how many feet the jet will travel in hours?

Question illustration
A
feet
Option A
B
feet
Option B
C
feet
Option C
D
feet
Option D
9

Which is the best estimate for written in scientific notation?

Question illustration
A
3 times 10 Superscript 2
Option A
B
6 times 10 Superscript 2
Option B
C
3 times 10 Superscript 4
Option C
D
6 times 10 Superscript 4
Option D
10

Which is the best estimate for written in scientific notation?

Question illustration
A
6 times 10 Superscript negative 4
Option A
B
60 times 10 Superscript negative 5
Option B
C
6 times 10 Superscript 7
Option C
D
60 times 10 Superscript 6
Option D

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