Scientific Notation 23

The distance from Venus to Sun is 6,700,000 miles. How is this number expressed in scientific notation?

• 67 × 10⁻⁵

• 6.7 × 10⁶

• 0.67 × 10⁷

• 6.7 × 10⁻⁶

The mass of a Chromebook is approximately 0.00185 metric ton. How is this number written in scientific notation?

• 185 × 10⁻⁵

• 1.85 × 10⁻³

• 18.5 × 10⁻⁴

• 0.185 × 10⁻²

Mrs. Gilbert used a microscope to measure the diameter of her pet's hair. She found that the diameter of the hair was 0.000054 meter. How is this number written in scientific notation?

• 5.4 × 10⁻⁵

• 5.4 × 10⁶

• 5.4 × 10⁵

• 5.4 × 10⁻⁶

Which of the following represent numbers written in scientific notation? Check all that apply.

• 0.125 X 10⁵

• 1.25 X 10⁵

• 125 X 10^-5

• 2.5 X 10^-5

How is 0.0000582 expressed in scientific notation?

• 5.82 X 10⁵

• 58.2 X 10^-5

• 5.82 X 10^-5

• 0.582 X 10⁵

Which of the following is 9.2 X 10⁷ written in standard form?

• 0.00000092

• 9.2000000

• 920,000,000

• 92,000,000

The population of a country is 500,640. How is this number expressed in scientific notation?

• 5.0064 X 10⁵

• 5.0064 X 10^-5

• 5.0 X 10⁵

• 500.64 X 10^-5

A proton weighs 0.000429 milligrams. Which of the following shows the mass of the proton expressed in scientific notation?

• 0.429 X 10^-3

• 429 X 10^-3

• 4.29 X 10^-4

• 42.9 X 10^-4

If a number written in scientific notation has a positive exponent, the number in standard notation will be ____________

• Large

• Tiny

UNDERSTANDING
If the exponent is a negative number...

• you will get a large number
• you will get a small number