Unit 2 Review

Negative Exponents for Powers of 10

100

What is 10³ ?

1000

200

What is 10^-2  as a decimal?

0.01

300

What is 10^-3 in fraction form?

1/10³ or 1/1000

400

What is 10^-5 in decimal form?

0.00001

500

What is 10^-4 written as a fraction?

1/10⁴    or   1/10000

Scientific Notation

100

I should use scientific notation when... 

Numbers are really big or really small

200

What is 0.0006 written in scientific notation?

6 x 10^-4

300

What is 23,000,000 written in scientific notation?

2.3 x 10⁷

400

Which number is greater...

5.4 x 10⁷    or    6.3 x 10⁶

5.4 x 10⁷

500

Which number is the least?

7.1 x 10^-4    or.   7 x 10^-3 

7.1 x 10^-4