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NO. 20
ANSWER: 8.89 X 10-5
Solution:
8.89 is a number between 1 and 10;
.00008885 = 8.89 X 10-5
the decimal point moves RIGHT 5 places;
the exponent is a NEGATIVE 5.
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NO. 21
Study the following problem on SCIENTIFIC NOTATION, rounded off to 3 significant digits.
45,667 = ___________________
Solution:
Place the decimal point between 4 and 5 so the number has a
value between 1 and 10. Since the decimal point moved 4
places LEFT, the power of 10 is a POSITIVE 104. Remember, a
number in Scientific Notation is a number between 1 and 10
times a power of 10.
Thus:
45,667 = 4.5667 X 104 = 4.57 X 104
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NO. 22
PROBLEM:
Convert this number to SCIENTIFIC NOTATION, rounded off to 3 significant digits.
4,444.3 = ______________
1-11
IT 0332
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