1. Write in Scientific Notation
1. 20,300,000
2. 0.0000045
Write in standard form
3. 6.34 x105
4. 5.56 x10-5
POD 10 Sep

2. Multiplying in Scientific
Notation
• Multiply the coefficients
• Use properties of exponents to
multiply the power of 10
• Simplify
4 x 103 • 3 x 104
12 x 107
1.2 x 108
Remember…your
coefficient must be
greater than or equal
to 1, and less than 10

3. Dividing in Scientific
Notation
• Divide the coefficients
• Use properties of exponents to
divide the power of 10
• Simplify
2 x 107 ÷ 4 x 104
.5 x 103
5 x 102
Remember…your
coefficient must be
greater than or equal
to 1, and less than 10

4. Practice
1. 2 x 107 • 4 x 104 = 8 x 107 + 4 = 8 x 1011
2. 5 x 10-6 • 4 x 10-3 = 20 x 10-6 - 3 = 20 x 10-9 = 2.0 x 10-8
3. 3 x 10-3 • 4 x 104 = 12 x 10-3 + 4 = 12 x 101 = 1.2 x 102
4. 8 x 106 4 x 105 = 2 x 106 – 5 = 2 x 101
5. 6 x 103 3 x 10-6 = 2 x 103 –(-6) = 2 x 109
6. 9 x 10-5 2 x 10-2 = 2 x 10-5 –(-2) = 2 x 10-3