Using                         Scientists must be 
     Scientific                    able to use very 
     Notation in                   large and very 
     Multiplication,               small numbers in 
     Division,                     mathematical 
     Addition and                  calculations.  As a 
     Subtraction                   student in this 
                                   class, you will have 
                                   to be able to 
                                   multiply, divide, 
                                   add and subtract 
                                   numbers that are 
                                   written in scientific 
                                   notation.  Here are 
                                   the rules.  
  When adding or subtracting 
   numbers in scientific 
  notation, the exponents 
    must be the same.
     Adding/Subtracting when 
     Exponents are THE SAME
  Step 1 - add/subtract the decimal
  Step 2 – Bring down the given exponent on the 10
 Example 1
                   3        3
            (2.56 X 10 ) + (6.964 X 10 )
                Step 1 - Add:  
                2.56 + 6.964 = 
                   9.524
           Step 2 – Bring down exponent : 
                        3
                 9.524 x 10
 Example 2
          (9.49 X 105) – (4.863 X 105)
            Step 1 - Subtract: 
            9.49 – 4.863 = 
              4.627
         Step 2 – Bring down exponent:
             4.627 x 105