Part Two - Scientific Notation and Decimal Format Flashcards

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1
Q

When you have a negative exponent for a number in scientific notation, the decimal format of that number is what?

A

A SMALL number

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2
Q

When you have a positive exponent for a number in scientific notation, the decimal format of that number is what?

A

A LARGE number

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3
Q

If the exponent is positive in scientific notation, to convert to decimal format, which direction does the decimal move?

A

To the RIGHT –>

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4
Q

If the exponent is negative in scientific notation, to convert to decimal format, which direction does the decimal move?

A

To the LEFT

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5
Q

When converting to decimal format, what are the rules?

A

One integer before the decimal; the exponent = # of times the decimal moves

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6
Q

Convert 0.0000000004796 to scientific notation.

A

4.796 x 10^-10

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7
Q

Convert 7,520,000,000 to scientific notation.

A

7.52 x 10^9

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8
Q

Convert 6.321 x 10^-11 to decimal format.

A

0.0000000000632

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9
Q

Convert 9.125x 10^9 to decimal format.

A

9,125,000,000

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10
Q

Why is it always a number x 10^n?

A

Our number system is a base 10, where we count down/up by 10’s.

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