Computing Problems written in Scientific
Progress Reports Next Thursday
Extra Credit Due Today
Reminder for all: Khan Academy due Wednesday
Write each measurement in both Scientific Notation
& Standard Form
1. 4 Gigabytes
2. 21.5 Megawatts 21,500,000
2.15 x 107
Write in Scientific Notation
3. 186,000 miles/second
4. 171,000,000,000 emails sent each day world wide.
Multiplying & Dividing Monomials Written in
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:
Which is, of course,
(2 x 5)( 4 x 5) = (2 x 4) (5 x 5 )
(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
Let's look at specific problems to solve:
Use the associative & commutative
properties to regroup.
Write 14.45 in scientific notation: = (1.445 x 101) x 108
Next, Use the associative property to regroup.
= 1.445 x (101 x 108)
= 1.445 x 109
On Your Own:
Dividing Monomials Written in Scientific Notation
An easy one to begin: