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NO. 79

Solution: 107 X 5 X 10-2 X 106 = 5 X 107+(-2)+6 = 5 X 1011

Solution:

.225X .002 X .04 = (2.25 X 10-1) X (2 X 10-3) X (4 X 10-2)

= 18 X 10-6 or 1.8 X 10-5

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NO. 80

Study the problem below, then continue.

108 =

Solution:

To extract the SQUARE ROOT of a power of 10, DIVIDE the EXPONENT by 2,

and retain the base 10.

Thus:

108 = 108 2 = 104

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No. 81

Solve using powers of 10.

106

=

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