Scientific Notation #2

​In our last lesson we turned scientific notation into standard form. Here are a couple review problems...

Fill in the Blanks

$7\ \times\ 10^4\ =$

Fill in the Blanks

$4.2\ \times\ 10^6\ =$

Fill in the Blanks

$5\ \times\ 10^{-3}\ =$

​Now it is time to turn

Numbers written in standard form into Numbers written in scientific notation

Rules:

1. Use numbers that are between 1 and 10

2. Count how far you needed to move the decimal to make that number

3. then write x 10 with whatever number you counted to as an exponent

Let's try it out...

Multiple Choice

5,000 =

• $$5\ \times\ 10^2$$

• $$5\ \times10^3$$

• $$5\ \times\ 10^4$$

• cheeseburger

Multiple Choice

30,000,000

• $$3\ \times\ 10^5$$

• $$3\ \times10^6$$

• $$3\ \times\ 10^7$$

• $$3\ \times\ 10^8$$

​The next few are a little bit more challenging.

Just remember that your number has to be between 1 and 10.

So these answers are going to have a decimal in them.

Multiple Choice

4,500 =

• $$0.45\ \times\ 10^4$$

• $$0.45\ \times10^3$$

• $$4.5\ \times\ 10^4$$

• $$4.5\ \times\ 10^3$$