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NO. 37

Solution:

Exponent is a NEGATIVE 8 when the

.00000001 = 1 X 10-8 = 10-8

decimal point moves 8 places to the RIGHT.

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NO. 38

Study the problems below, then continue.

9.15X 103 = ________ X 106

9.15 X 10-3 = ________ X 10-6

Solution:

Move the decimal point to the LEFT when the change in exponent is in a

POSITIVE direction. Move the decimal point to the RIGHT when the change in

exponent is in a NEGATIVE direction.

Thus:

9.15 X 103 = .00915X 106

9.15 X 10-3 = 9,150 X 10-6

NOTE:

Changing from 103 to 106 means the exponent changes by 3 in a POSITIVE

direction. Changing form 10-3 to 10-6 means the exponent changes by 3 in a

NEGATIVE direction.

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NO. 39

Fill in the blank with the proper value.

2.2 X 10-2 = ______ X 100