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lesson 25.notebook                                                     October 11, 2012


            Lesson 25:

            *FYI...

                ­To multiply decimals...
            ­don't line up the decimal points
            ­multiply ­ then count the decimal places
            ­locate where the decimal point goes in the answer

               ­To divide decimals
            ­IF the divisor is a whole number, just bring the point 
            straight up into the quotient ­ then divide!
            ­IF the divisor is a decimal number...move the point 
            over ­ over ­ up into the quotient ­ then divide!




                                                                                          1
lesson 25.notebook                 October 11, 2012


            Examples ­ Lesson 25
            Simplify.
            A)  0.9(0.11)




            B)  (3.1)2




            C)  (2.5)2




                                                      2
lesson 25.notebook           October 11, 2012


              D)  0.144
                         4




              E)  4.36
                  0.4




                                                3
lesson 25.notebook          October 11, 2012




              F)     3.6
                   0.6




              G) 3   0.06
                         




                                               4

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8th pre alg -l25--oct11

  • 1. lesson 25.notebook October 11, 2012 Lesson 25: *FYI... ­To multiply decimals... ­don't line up the decimal points ­multiply ­ then count the decimal places ­locate where the decimal point goes in the answer ­To divide decimals ­IF the divisor is a whole number, just bring the point  straight up into the quotient ­ then divide! ­IF the divisor is a decimal number...move the point  over ­ over ­ up into the quotient ­ then divide! 1
  • 2. lesson 25.notebook October 11, 2012 Examples ­ Lesson 25 Simplify. A)  0.9(0.11) B)  (3.1)2 C)  (2.5)2 2
  • 3. lesson 25.notebook October 11, 2012 D)  0.144            4 E)  4.36 0.4 3
  • 4. lesson 25.notebook October 11, 2012 F)     3.6 0.6 G) 3   0.06             4