Significant Figures /Scientific Notation

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

Determine the number of Significant Figures in 10-L.

• 4
• 3
• 2
• 1

Determine the number of Significant Figures in 13410000-m.

• 4
• 3
• 2
• 1

Express 23400 in proper scientific notation. 

• 2.34 x 10⁴
• 2.3 x 10³
• 2.30 x 10⁵
• 2.34 x 10³

When writing a number in scientific notation, the first number must be greater than 1, but less than 10.

• False
• True

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10

UNDERSTANDING
If the exponent is a positive number...

• you will get a large number
• you will get a smaller number

UNDERSTANDING
If the exponent is a negative number...

• you will get a large number
• you will get a small number

When your exponent is negative, you move your decimal....

• to the right
• to the left
• to both sides
• nowhere.... the decimal goes nowhere