Scientific Notation Check

Which number below is equivalent to $5.0\times10^4$  ?

•  $500$  

•  $5,000$  

•  $50,000$  

•  $500,000$  

Which number below is equivalent to $3.6\times10^2$  ?

•  $3600$  

•  $36,000$  

•  $36$  

•  $360$  

Which of the following is properly expressed in scientific notation?

• 0.2 x 10³

• 5.83 X 10³

• 19.7 X 10³

• 20 X 10³

Which of the following is properly expressed in scientific notation?

• 7.14 X 10^-4

• 0.83 X 10^-4

• 0.005 X 10^-5

• 5000 X 10^-5

Evaluate: 2.5 × 10⁷

• 250000000

• 2500000

• 25000000

• 250000

Evaluate: 2.5 × 10^-2

• 2.5

• 0.25

• 0.025

• 0.0025

Evaluate: (2.5 × 10⁴) × (2 × 10⁴)

• 4.5 × 10⁴

• 4.5 × 10⁸

• 5 × 10⁸

• 5 × 10⁴

Evaluate: 7.25 × 10⁴ + 2 × 10⁵

• 27.25 × 10⁴

• 9.25 × 10⁵

• 2.725 × 10⁴

• 2.725 × 10⁵

Write 7.8 x 10^-3  in standard form.

• 0.0078
• 7,800
• 78
• 0.078

Write 52,300,000 in scientific notation.

• 5.23 x 10⁷
• 5.23 x 10^-7
• 52.3 x 10⁶
• 52.3 x 10^-6