1. REALLY BIG & REALLY small Numbers
Scientific Notation - process of writing very large and very small numbers.

2. Scientific Notation The Proper Format  M x 10n
“M” is a non-zero integer > 1 but < 10
“n” is an exponent = to the number of decimal places one must move the decimal to acquire the single digit M value.
“n” is negative if a you must move the decimal to right. ( Small Number) “n” is positive if a you must move the decimal to left. ( Big Number)

3. Scientific Notation Ex A: 42,000  4.2 x 10000. 4.2 x 104
Standard Scientific
Form Notation
Ex B:  x  x 10-5

4. Math using Scientific Notation
Multiplication & Division:
A) When multiplying; the M values simply multiply together as in standard notation, but the “n” exponents will add together.
Ex: x x 10-3
X 2 x X 4.9 x 10-6
(3)(2) x 10(3+4)  6 x (2.5)(4.9) x 10(-3)+(-6)
12.25 x 10-9  x 10-8

5. Math using Scientific Notation
Multiplication & Division:
b) When dividing; the M values simply divide together as in standard notation, but the “n” exponents will subtract denominator from numerator.
Ex: x  ¾ = & /104 =10(3-4)
4 x 104
0.75 x  x10-2
2.5 x  2.5/5.0 = .50
5.0 x  10-3/10-6 = 10(-3)-(-6)
.50 x  x102