AnswersHOPE Scholars- Math Grade 8Operations with Scientific Notation

Operations with Scientific Notation Answers

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What is in scientific notation?

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A
5.5 times 10 Superscript 12
Option A
B
6.82 times 10 Superscript 12
Option B
C
5.5 times 10 Superscript 35
Option C
D
6.82 times 10 Superscript 35
Option D
2
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Matsu wants to measure the dimensions of her vegetable garden. Which unit of measurement should she use to eliminate the need to write the values in scientific notation?

A
inches
B
feet
C
cups
D
tons
3

Aliyah wants to estimate the value of the quotient of and . Which statement about the value is true?

Question illustration
A
The value will be greater than 1 because is a positive number. A number in scientific notation with a positive exponent has a value greater than 1.
Option A
B
The value will be greater than 1 because . A number in scientific notation with a positive exponent is greater than 1.
Option B
C
The value will be less than 1 because is less than 1. The negative exponents will make it even smaller.
Option C
D
The number will be less than 1 because is a very small number and division always makes the size of a number smaller.
Option D
4

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

Question illustration
A
3
B
5
C
8
D
15
5

Leah is measuring the weight of adult rhinos at the zoo. Which unit of measurement should she use to eliminate the need to write the values in scientific notation?

A
grams
B
feet
C
gallons
D
tons
6

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
7

An inground swimming pool contains units of water. Which unit of measure was used?

Question illustration
A
teaspoons
B
cubic centimeters
C
fluid ounces
D
gallons

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