Scientific Notation Game

The half-life of Uranium is 2.5 x 10⁵ years. What is this in standard form?

• 2500000

• 250

• 25000

• 250000

Write 4.83 x 10^-6 in Standard Form.

• 0.00048300

• 0.00004830

• 0.00000483

• 0.00000438

(3 x 10⁷)(3.1 x 10^-4)

• 9.3 x 10^-28

• 9.3 x 10³

• 6.1 x 10³

• 6.1 x 10^-28

• 2.1 x 10⁶

• 2.1 x 10^-6

• 9.9 x 10⁶

• 9.9 x 10^-6

The thickness of a human hair can be about 6 x 10^-3 centimeters. Which shows this thickness in standard form?

• 6000 cm

• 0.06 cm

• 0.006 cm

• 0.0006 cm

There are approximately 3.1 x 10⁸ people in the United States. If on average each person has 4.1 x 10¹ coins lying around on dressers, in pockets, in cars, etc., how many total coins do all the people in the U.S. have?

• 127.1 x 10⁸

• 12.71 x 10⁹

• 1.271 x 10¹⁰

• .1271 x 10¹¹

There are approximately 3.61 x10⁵ babies born every day. How many babies are born in 30 days? Choose all that are correct.

• 10830000

• 10.83 x 10⁶

• 1.083 x 10⁷

• .1083 x 10⁸

The mantissa can equal 1.

• True

• False

The matissa can equal 10

• True

• False

Tommy has $10 and Jamal has $30. Jamal has ____ times more than Tommy. Using the operation ____ with 30 and 10 we get an answer of 3.

• 3; division

• 3; multiplication

• 20; division

• 20; multiplication