Estimating quantities and units using scientific notation

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4

The population of Kansas is 2,853,118 people. Which of the following is an estimation in scientific notation for the population?

• 2,800,000 people

• 3,000,000 people

Convert to Scientific Notation: 1,23,000,000,000,000

•  $1.23\ x\ 10^{14}$  

•  $1.23\ x\ 10^{-14}$  

•  $1.23\ x\ 10^{12}$  

•  $1.23\ x\ 10^{-12}$  

A person weighing 150 pounds will have, on average, 0.000021 pounds of gold in his body. How is this amount of gold expressed in scientific notation?

The diameter of a grain of sand is .0024 inch. What is this using scientific notation?

• 2.4 x 10⁻³
• 24 x 10⁻²
• 0.024
• 0.0024

4.3x10⁵

• 4300000

• .000043

• 430000

• .0000043

How do you write
8.317 x 10⁶
in standard decimal notation?

• 8, 371, 000
• 83, 170, 000
• 837, 100
• 8, 317, 000

Express the following number in usual form:
3.5 x 10^-5

• 0.000035
• 0.00035
• 0.0000035
• 0.0035

Pg. 20

Is this number very Large or very Small?

9.02 × 10^-8

• Large

• Small

What is 5.676 x 10^-3

• 5,676

• 0.0056767

• 0.00567

• 170.28