Calculating Scientific Notation

Write 0.000972 in scientific notation.

• 9.72 x 10^-4

• 9.72 x 10^-3

• 972 x 10^-4

• 9.72 x 10⁴

Which of the following is correct scientific notation?

• 20.35 x 10⁴

• .2035 x 10⁴

• 2035 ⁴

• 2.035 x10⁴

Put the following in scientific notation:
23,948

• 23.948 x 10³

• 2.3948 x 10⁴

• 2.3948 x 10^-4

• 0.23948 x 10⁵

If the world population is 6,900,000,000; how would it be written in scientific notation?

• 6.9 x 10⁹

• 6.9 x 10⁶

• 6.9 x 10⁸

• 6.9 x 10^-9

• A

• B

• C

• D

• 
• 
• 
• 

Arjun is calculating the distance between two countries. He finds that the distance is
8.317 x 10⁶ meters. What is this distance in kilometers in standard form? 1,000 meters = 1 kilometer

• 83,170

• 8,317,000

• 831,700

• 8,317

Evelyn is measuring the concentration of a solution in a lab experiment. She notes down the concentration as 1.28 x 10^-4. How should she write this concentration in decimal form?

• 0.128

• 0.0000128

• 0.0128

• 0.000128

• Anders wrote 4.5 instead of 4.05

• Anders used a base of 10 instead of 6

• Anders used a positive power instead of a negative power.

For what value of a will 6 × 10⁴ be 20 times larger than a × 10³?