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NO. 85

Solution:

1,000 X 107 =

103 X 107 =

1010 = 1010 + 2 = 105

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NO. 86

Study the problem below, then continue.

(400 X 104)2 =

Solution:

Convert quantity in parentheses to SCIENTIFIC NOTATION; square the

numerical value; multiply the power of 10 by 2.

Thus:

(400 X 104)2 = (4 X 102 X 104)2 =

42 X 106X2 = 16 X 1012 or 1.6 X 1013

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NO. 87

Solve using powers of 10.

(12 X 10-3)2 =