Back-to-school math: Scientific notation

Question 1

Mental Math Warm-Up: Which choice represents this value?

Accepted Answer

28

Answer

0.28

Answer

2.8

Answer

280

Question 2

Mental Math Warm-Up: Which choice represents this value?

Accepted Answer

280

Answer

0.28

Answer

2.8

Answer

28

Question 3

Mental Math Warm-Up: Which choice represents this value?

Accepted Answer

2,800

Answer

280

Answer

28,000

Answer

Not here

Question 4

The approximate population of Texas in 2017 is given. Which choice represents this value?

Accepted Answer

28 million

Answer

2.8 million

Answer

280 million

Answer

2.8 billion

Question 5

A calculator displays 28 million as shown. What does this notation mean?

Accepted Answer

Raise 10 to the power of 7 then multiply by 2.8

Answer

Multiply 2.8 by 7

Answer

Raise 2.8 to the power of 7

Answer

I have no idea!

Question 6

This calculator is using Scientific Notation to represent 28 million.

Accepted Answer

I notice some patterns I’d like to discuss!

Accepted Answer

HELP! Can we talk more about this?

Question 7

Which choice explains why the coefficient 2.8 is shown here to help represent 28 million?

Accepted Answer

2.8 must be greater than or equal to one but less than ten

Answer

2.8 must be greater than or equal to one

Answer

2.8 must be a two-digit number

Answer

2.8 must be greater than the exponent

Question 8

Which choice explains why the base 10 is shown here?

Accepted Answer

Place values in our decimal system are based on powers of 10

Answer

In Scientific Notation, the base can be any number

Question 9

Which choice explains why the exponent 7 is shown here?

Accepted Answer

The exponent tells how many times to multiply 2.8 by 10

Answer

The exponent tells how many zeros to write

Question 10

Which of the following is NOT TRUE of a positive number written in scientific notation?

Accepted Answer

Exponent is always 10

Answer

Coefficient is greater than or equal to 1 but less than 10

Answer

Coefficient is always multiplied by a power of 10

Answer

Base is always 10

Question 11

The distance, in miles, between Mars and the Sun is given. Which choice is equivalent?

Accepted Answer

142,000,000

Answer

14,200,000,000

Answer

Not here

Question 12

A light year, in miles, is represented using Scientific Notation. Which choice is equivalent?

Accepted Answer

$5,880,000,000,000$

Answer

$588,000,000,000,000$

Answer

$5,880,000,000$

Answer

Not here

Question 13

The number of website visitors is given. Which choice shows this number in Scientific Notation?

Accepted Answer

2.3 × 10¹⁰

Answer

23 × 10⁹

Answer

23 × 10¹⁰

Answer

2.3 × 10⁹

Question 14

The volume of water on Earth, in cubic miles, is given. Which choice is equivalent?

Accepted Answer

3.33 × 10⁸

Answer

333 × 10⁶

Answer

333 × 10⁸

Answer

3.33 × 10⁶

Question 15

Which choice correctly represents the calculator display using Scientific Notation?

Accepted Answer

8.26 × 10⁹

Answer

82.6 × 10⁹

Answer

826 × 10⁹

Answer

Not here

Question 16

Which choice correctly represents the calculator display using Standard Notation?

Accepted Answer

$8,260,000,000$

Answer

$826,000,000,000$

Answer

Not here