(6) Compute Scientific Notation (8th)

The speed of light is about 1.9 x 10⁵ miles per second. It takes about 500 seconds for light to travel from the sun to earth.

What is the approximate distance between Earth and the Sun?

• 3.8 x 10² miles

• 9.5 x 10⁶ miles

• 9.5 x 10⁷ miles

• 95 x 10⁷ miles

• 5.4 x 10⁴

• 5.4 x 10²

• 6.4 x 10⁶

• .64 x 10¹

• 3 x 10^-11

• 1,037

• 10.37 x 10¹

• 10.4 x 10²

• 103.7

• 30 x 10³

• 6 x 10¹

• 300

• 275

Divide.

• 3.9 x 10⁶
• 4 x 10²⁰
• 4 x 10⁶
• 3.9 x 10²⁰

(7.32 x 10⁶) - (4.01 x 10⁸)

• -3.937 x 10⁸

• -3.94 x 10⁸

• 3.937 x 10⁷

• 3.937 x ⁻²

There are approximately 3.1 x 10⁸ people in the United States. If each person has 4.1 x 10¹ coins, how many coins are there altogether?

• 1.271 x 10¹⁰
• 1.271 x 10⁹
• 1.271 x 10¹¹
• 1.271 x 10⁸

A factory can make 3 × 10⁴ t-shirts per day, how many t-shirts will it make in 2.5 ×10² days?

• 7.5 × 10⁶ t-shirts

• 7.5 × 10⁴ t-shirts

• 75 × 10⁵ t-shirts

• none of these

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10