Ch 8.4 Scientific Notation
Scientific Notation
Examples
A number greater or equal to 1 and less than 10, times a power of 10.
Determine whether each number is in correct scientific notation.
1.0 x 10­2
0.99 x 104
9.9 x 103
82.77 x 100
Large Numbers
Examples
1. Write each number in standard notation.
3 x 105
4.9 x 107
6.424 x 103
2. Write each number in scientific notation.
50,000
4,200
72,900,000
Small Numbers
Examples
1. Write each number in standard notation.
3 x 10­3
3.8 x 10­8
4.303 x 10­5
2. Write each number in scientific notation.
0.0007
0.00810
0.0000051
Calculations
Examples Express each answer in correct scientific notation.
1.
Use exponent properties to multiply: (5 x 104)(3 x 103)
2.
Use exponent properties to divide: