Understanding Scientific Notation

How do you express 45,000 in scientific notation?

• 4500 x 10^1

• 450 x 10^2

• 45 x 10^3

• 4.5 x 10^4

How do you express 72 million in scientific notation?

• 72 x 10^6

• 7.2 x 10^7

• 720 x 10^5

• 7200 x 10^4

What does a negative exponent in scientific notation indicate?

• A very large number

• A number between 0 and 1

• A number greater than 10

• A positive number

How is 0.0023 represented in scientific notation?

• 230 x 10^-5

• 0.23 x 10^-2

• 2.3 x 10^-3

• 23 x 10^-4

What is 2.4 x 10^2 in standard notation?

• 2400

• 240

• 2.4

• 24

How do you convert 3.56 x 10^3 to standard notation?

• 35.6

• 0.356

• 3560

• 356

What is the standard notation of 4.27 x 10^5?

• 4.27

• 42700

• 427

• 427000

How is 1.8 x 10^-3 represented in standard notation?

• 0.0018

• 0.018

• 1800

• 18

What does 3.96 x 10^7 convert to in standard notation?

• 39600

• 39600000

• 396

• 3960000

What is the scientific notation of a small number, 0.0000416?

• 4.16 x 10^-5

• 41.6 x 10^-5

• 416 x 10^-6

• 4.16 x 10^-4