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No. 17

Solution:

8.89 is a number written in SCIENTIFIC NOTATION, a

88,885 =

number between 1 and 10 times a power of ten; the

8.89 X 104

decimal point moved four places LEFT; the exponent

for the power of 10 is a POSITIVE 4.

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NO. 18.

Study the following problem on SCIENTIFIC NOTATION, rounded off to 3 significant digits.

.0005966 = _________

Solution:

Converting a decimal number to SCIENTIFIC NOTATION (a

number between 1 and 10 times a power of ten) is done by

moving the decimal point RIGHT from its position in the

original number to a new position which will be immediately

following the first significant digit, giving you a NEGATIVE

power of 10.

NOTE:

Count the number of places you moved the decimal point to

the RIGHT in the original number to its new position

following the first significant number. This will give you the

proper exponent for your NEGATIVE power of 10.

Thus:

Original number

In scientific

In scientific

notation, but

notation, and

NOT rounded

rounded off to 3

off.

significant

numbers.

.0005966

= 5.966 X 104

= 5.97 X 104

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NO. 19

Convert this number to SCIENTIFIC NOTATION, rounded off to 3 significant digits.

.000088885 = ______________