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SCIENTIFIC NOTATION. MULTIPLICATION: MULTIPLY THE NUMBERS AND ADD THE EXPONENTS EX: (2.1 X 10 15 ) X (2.0 X 10 10 ) = (2.1 X 2.0) X 10 (15 + 10) = 4.2 X 10 25 DIVISION: DIVIDE THE NUMBERS AND SUBTRACT THE EXPONENTS EX: (8.0 X 10 15 ) 10 ) = (8.0 ÷4.0) X 10 10 ) = 2.0 X 10 5

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MULTIPLICATION:

MULTIPLY THE NUMBERS AND ADD THE EXPONENTS

EX: (2.1 X 1015) X (2.0 X 1010) = (2.1 X 2.0) X 10 (15 + 10) = 4.2 X 1025

DIVISION:

DIVIDE THE NUMBERS AND SUBTRACT THE EXPONENTS

EX: (8.0 X 1015) 10) = (8.0 ÷4.0) X 1010) = 2.0 X 105

FOR ADDITION AND SUBTRACTION ONE NUMBER MUST BE

CHANGED SO THE EXPONENTS SO THE EXPONENTS OF BOTH ARE

THE SAME AND THEN THE NUMBERS ARE ADDED OR SUBTRACTED.

EX: (2.3 X 1050) + (3.0 X 1049) =

(2.3 X 1050) + (0.3 X 1050) = 2.6 X 1050


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