Today:Warm-Up: (4)

Computing Problems written in Scientific Notation

Class Notes

28

Feb

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Notes:

Progress Reports Next Thursday Extra Credit Due Today

Reminder for all: Khan Academy due Wednesday

Warm Up:

1. 4 Gigabytes

2. 21.5 Megawatts

Write each measurement in both Scientific Notation & Standard Form

3. 186,000 miles/second

21,500,0002.15 x 107

Write in Scientific Notation

4. 171,000,000,000 emails sent each day world wide.

Practice Problem Section of Notebook, Please

Before we begin, a mathematical truth to consider. (2 x 5)( 4 x 5) = (2 x 4) (5 x 5)

Another way to state this is: (2 x 5)( 4 x 5) = (2 x 4) (51 x 51)

Which is, of course, (2 x 4) (52)

We used both the commutative and associative properties to rearrange the original problem. As mentioned before, take what you already know, find similarities, and proceed.

Let's look at specific problems to solve:

Multiplying & Dividing Monomials Written in Scientific Notation

Practice Problems:

Write 14.45 in scientific notation:

= 1.445 x (101 x 108)

Next, Use the associative property to regroup.

Use the associative & commutative properties to regroup.

= (1.445 x 101)

x 108

= 1.445 x 109

Practice Problems:

On Your Own: Dividing Monomials Written in Scientific

NotationAn easy one to begin:

SCIENTIFIC NOTATION

SCIENTIFIC NOTATION

SCIENTIFIC NOTATION

Class Work