Part Two - Scientific Notation and Decimal Format Flashcards
When you have a negative exponent for a number in scientific notation, the decimal format of that number is what?
A SMALL number
When you have a positive exponent for a number in scientific notation, the decimal format of that number is what?
A LARGE number
If the exponent is positive in scientific notation, to convert to decimal format, which direction does the decimal move?
To the RIGHT –>
If the exponent is negative in scientific notation, to convert to decimal format, which direction does the decimal move?
To the LEFT
When converting to decimal format, what are the rules?
One integer before the decimal; the exponent = # of times the decimal moves
Convert 0.0000000004796 to scientific notation.
4.796 x 10^-10
Convert 7,520,000,000 to scientific notation.
7.52 x 10^9
Convert 6.321 x 10^-11 to decimal format.
0.0000000000632
Convert 9.125x 10^9 to decimal format.
9,125,000,000
Why is it always a number x 10^n?
Our number system is a base 10, where we count down/up by 10’s.