Adding_and_Subtracting_decimals_homework

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					382 Unit 3
Name _________________________________                                    Date_______________

                              Decimal Operations – Addition and Subtraction

All of the problems in this section are addition and subtractions problems. For each of
the following problems:
    A) identify context clues from the problem that let you know it is an addition or
       subtraction problem
    B) write an equation that will allow you to solve the problem
    C) estimate your answer
    D) show work to solve the problem

1. The table below shows the scores that were given to four gymnasts for their floor exercise
   routines. What was Sarah’s combined score?
                                                                     D) Work:
                     Gymnast      Judge 1     Judge 2   Judge 3
                       Mike         8.75        8.5       8
                      Naisha        8.25       7.85      7.75
                      Sarah         7.35       7.75       8
                      Katrine       9.4         9.5      9.35

     A) Context Clues for Addition:


                                                         C) Estimation:
     B) Equation:



2. Jeremy and his three friends won pies at the local grocery store. They ate some of the pie when
   they picked up their prizes as their picture was being taken for the newspaper. Alex ate 0.25 of
   his pie. Wesley ate 0.4 of his pie. Margaret ate 0.75 of her pie, and Emily ate 0.2 of her pie.
   How much of a pie did Wesley and Alex eat?

     A) Context Clues for Addition:                     D) Work:




     B) Equation:




     C) Estimation:




3.   Samantha has saved $11.25 to buy a season pass to the nearby water slide park.
     She plans to add $2.30 to her savings each week. Felipe has saved $9.30 toward
     his season pass. He plans to add $2.85 to his savings each week. How much
     money will Felipe have saved towards his season pass after 3 weeks?

             A) Context Clues for Addition:                   D) Work:




             B) Equation:




             C) Estimation:
382 Unit 3
6.     Jason and Kelly went to Napoli’s Italian Restaurant for dinner. Jason ordered
       a Greek salad, Ravioli, and a soft drink. Kelly ordered Minestrone Soup,
       Fettuccini Alfredo, and 2 glasses of iced tea. What is the difference between
       the cost of Jason’s salad and the cost of Kelly’s soup? Use the menu below
       to help you answer this question.
                                Napoli’s Restaurant
                                                                                          Work:
 Pasta                                       Soups and Salads
 Fettuccini Alfredo……………………………$7.95          Chicken Caesar Salad…………………..$5.95

 Tortellini Ala Panna………………………….$7.95        Chicken Italiano Soup………………….$5.95

 Tortellini Ala Bolognese………………….$7.95       Greek Salad……………………………………$4.50

 Manicotti…………………………………………….$6.95            Minestrone Soup…………………………..$2.75

 Ravioli…………………………………………………..$6.95           Dinner Salad………………………………….$2.00

 Desserts                                    Beverages
 Cheesecake…………………………………………$2.95             Soft Drinks (free refills)…………$1.25

 Cannoli………………………………………………….$2.75            Iced Tea (no free refills)………….$1.10

 Cappuccino…………………………………………..$2.25           Milk (no free refills)…………………..$1.50



      Context Clues for Subtraction:
                                                                         Estimation:


      Equation:



9.     Samantha has saved $11.25 to buy a season pass to the nearby water slide park.
       She plans to add $2.30 to her savings each week. Felipe has saved $9.30 toward
       his season pass. He plans to add $2.85 to his savings each week. How much
       less money did Samantha start with than Felipe?


         A) Context Clues for Subtraction:                               D) Work:




         B) Equation:




         C) Estimation:




10.      The sixth grade class wants to have a party. The students decided to serve punch. The
         punch recipe that they want to use will serve 25 people. How many fewer cups of
         strawberries will be used than pineapple pieces?

         5.5     pints of strawberry soda
                                                                             A) Context Clues for Subtraction:
         2.5     pints of pineapple pieces
         4.25    pints of pineapple sherbet
         3.375   cups of strawberries
         1       cup pineapple juice                                           D) Work:

        B) Equation:




        C) Estimation:

				
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