Scientific Notation (6.6) Moving decimals To and fro

Start with a POD Multiply on your calculators: X What sort of answer pops up on the screen? What does it mean?

Basic vocabulary 4.02 X In this number, 4.02 is the mantissa (to make weight) also called: coefficient, significand ranges from 1 to less than is the characteristic (giving the size of the number) can be positive, negative, or 0 There are 3 significant digits (4, 0, and 2).

Try it Give the characteristic, mantissa and number of significant digits for each of the following: x x x 10 9

Conversion Convert to scientific notation. How many significant digits are in each one? million

Conversion Convert from scientific notation. What would the notation for these look like on your calculators? x x x x x 10 1

Multiply Multiply and express in scientific notation. 1.(3 x )(4 x 10 2 ) 2.(4 x )(5.2 x ) 3.(6.8 x 10 8 )(2 x )