#  To add numbers in scientific notation: 1) Add the constants 2) Keep the exponent the same  Example: (2.1 x 10 5 ) + (3.2 x 10 5 ) = (2.1 + 3.2) x 10.

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 To add numbers in scientific notation: 1) Add the constants 2) Keep the exponent the same  Example: (2.1 x 10 5 ) + (3.2 x 10 5 ) = (2.1 + 3.2) x 10 5 = 5.3 x 10 5

 To subtract numbers in scientific notation: 1) Subtract the constants 2) Keep the exponents the same.  Example: (7.9 x 10 8 ) – (6.8 x 10 8 ) = (7.9 – 6.8) x 10 8 = 1.1 x 10 8

 To Multiply numbers in scientific notation: 1) Multiply the constants 2) Add the exponents  Example: (5.1 x 10 3 ) ( 2.0 x 10 5 ) = (5.1 x 2.0) (10 3 x 10 5 ) = 10.2 x 10 8 = 1.02 x 10 8+1 = 1.02 x 10 9

 To divide numbers in scientific notation: 1) Divide the constants 2) Subtract the exponents  Example: 6.2 x 10 12 = 6.2 x 10 12 = 3.0 x 10 10 2.0 x 10 2 2.0 10 2

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