1. Day 2 of Scientific Notation
Calculator Keys EE or EXP
Sci key

2. The EE or EXP key on your calculator has a
built-in function. That means it performs a
specific command every time the key is
pressed.
EE = “time 10 to the ____ power”

3. Calculator notation
 Some calculators show scientific
notation the same way we have
written them here.
 Some use EE. They write 3.456 EE5
to mean 3.456 x105.
 Some write the same thing with this in
the screen 3.4560505.

4. Which is greater? Why?
 3.3 x 10 2 or 3.3 x 10 -2
 1.6 x 10 -4 or 1.68 x 10 -4
 5.2 x 10 -5 or 5.2 x 10 -6
 7.9 x 10 -7 or 2.4 x 10 -9

5. Simplify
Remember your exponent rules
 3.8 x 103)(4.1 x 104)
 (2.1 x 105)(3 x 10-4)
 (3.1 x 10-3)2

6.  (3.6 x 104) (2 x 106)
 (4.2 x 10-4) (2.1 x 10-5)

7. Assignment: P. 515 33-48