AnswersFL-1205070-MJ Grade 8 Pre-Algebra Summer 2026Operations with Scientific Notation

Operations with Scientific Notation Answers

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Kevin calculated the product of 3.2 × 104 and 3.6 × 102 as 11.52 × 106. Which is the next step that Kevin should apply to his solution?

A
Write in scientific notation, moving the decimal in the coefficient one place left and keeping the same exponent.
B
Write in scientific notation, moving the decimal in the coefficient one place to the left, which subtracts 1 from the exponent value.
C
Write in scientific notation, moving the decimal in the coefficient one place to the left, which adds 1 to the exponent value.
D
Write in scientific notation, moving the decimal in the coefficient one place to the right, which adds 1 to the exponent value.
3

3. poundsounces✔ tons

A
pounds
B
ounces
C
✔ tons
6

What conclusions can be drawn about finding the quotient in scientific notation? Check all that apply.

Question illustration
A
The coefficient of the solution is 6.4, the difference of the original coefficients.
B
The exponent of the solution is –12, the difference of the original exponents.
C
The coefficient of the solution must be greater than or equal to one but less than 10.
D
The quotient is 3.0 × 10-12
E
The solution is a very large number.
7

Find the quotient of 2.5 × 10-3 and 7.1 × 106. What can be concluded about the solution? Check all that apply.

A
The E indicates that the solution is given in scientific notation.
B
The coefficient is 3.5211.
C
The exponent is 10.
D
The solution can be written in scientific notation as 3.5211 × 10-10.
E
The solution is 35,211,000,000.
8

Analyze Nick’s solution. Is he correct? If not, what was his mistake?

A
Yes, Nick is correct.
B
No, the power multiplied to 8.64 should have an exponent of 0.
C
No, he needed to subtract the coefficients.
D
No, he needed to add the exponents.
9

How can Buster tell without fully performing the calculations?

A
Buster knows the answer is more than 1, because he can add the exponents to see that the solution will have an exponent of 21.
B
Buster can tell the answer is less than 1, because he can subtract the exponents to see that the solution will have an exponent of –5.
C
Buster knows the answer is more than 1, because 9.763 ÷ 1.56 is more than 1.
D
Buster cannot answer the question without a calculator.
10

Question text not available

Answers:
Selection 1:pounds
Selection 2:ounces
Selection 3:tons
11

1. ✔ poundsouncestons

Answers:
Selection 1:pounds
Selection 2:ounces
Selection 3:tons
12

What is the product of 8.2 × 109 and 4.5 × 10-5 in scientific notation?

A
36.9 × 10-45
B
12.7 × 104
C
3.69 × 105
D
3.69 × 1014

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