### Scientific notation and the metric system

```Scientific Notation and
Metric Units
Scientific Notation and Metric Units
• SN is used for numbers that are
very large or very small
• SN has a standard form: a
nonzero number with one place
to the left of a decimal point
following by 10 raised to some
power
Scientific Notation and Metric Units
Which of these numbers is NOT expressed in
standard scientific notation?
a. 3.0 X 104
b. 56.2 X 10-8
c. 0.45 X 10-7
d. 1.9 X 109
Scientific Notation and Metric Units
Using your calculator for scientific notation. Put
these numbers into your calculator and press
“enter”.
a. 0.00000000056
________________
b. 1,000,000,000,000 ________________
Note that your calculator has an EE button that
is used for SN. Your calculator automatically
expresses an answer in standard form.
NEVER WRITE “E” IN AN ANSWER!
Scientific Notation and Metric Units
Do questions 5 and 6 on page 164.
Scientific Notation and Metric Units
#5, p 164
a. 9.367421 X 106
b. 7.241 X 103
c. 5.519 X 10-4
d. 5.408 X 100
e. already in standard scientific notation
f. 6.319 X 10-1
g. 7.215 X 10-9
h. 7.21 X 10-1
Scientific Notation and Metric Units
#6, p 164
a. 483
b. 0.0007221
c. 6.1
d. 0.0000000911
e. 4,221,000
f. 0.00122
g. 9999
Scientific Notation and Metric Units
You need to memorize the information on page
130, Table 5.2.
Do questions 9 and 10 on page 164. Be sure to
get help now with your calculator if you are
having problems.
Scientific Notation and Metric Units
#9, page 164
a. 103
b. 10-2
c. 10-3
d. 10-1
e. 10-9
f. 10-6
Scientific Notation and Metric Units
#10, page 164
a. mega
b. milli
c. nano
d. mega
e. centi
f. micro
Scientific Notation and Metric Units
On page 169, do #1, 2, 3, 4
```