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          Understanding


               Divide.
               a) 32-MO                b) 0.9-r 10               c)  160-f 100            d) 2.32^ 100
               e) 40v10                f)  300-r 100             g) 3.04 V 10             h) 50.9^100
               i)  15.3-r 10           j)  265.1 ^1000           k)  103.14-r 1000        I)  3.04^100

               Fill in the blanks.
               a) 26-r      = 2.6      b)  14.3-r _   = 0.143    0   60.2^     _ = 60.2   d) 324 -r  _  = 0.324
               e) 605-r       = 60.5   f)  0.14-r.    = 0.014    9) 7.2-       = 0.072    h) 1000 -r     = 10
           e Jo drinks 21 t of water in 10 days. How many litres of water does he drink each day if he drinks the
               same amount every day?
           o A cellphone is on sale at one tenth of its original price. If the original price of the cellphone was
               $289.98, what is the sale price? Give your answer to the nearest dollar.



          Inthischap,er                     Dividing decimals


      Pupils should be able to:
      •     divide decimals with one
                                      Example 6
          and/or two places by
          single-digit numbers
                                         Sasha has 6.4 i of juice. She wants to share it equally between her 2 children.
                                         How many litres of juice does each child get?
     ^ RECALL                            Divide 6.4 by 2.
                                                               To place the decimal point in the correct position in the
       Find the quotient.                                      answer, count one digit from the right in the answer.
                                           3
                                         2r6  4               There is one digit after the decimal point.
             I
          9  43.2
                                         Each child gets 3.21 of juice.
                                         Ben has 4.35 gigabytes of data. If Ben uses all the data in 5 days and that he
                                         uses the same amount of data each day, how much data does he use per day?

                                         Divide 4.35 by 5.
     o                                   Write zero to show that 4
                Spotlight
                                         cannot be divided by 5.
       What is 0  5? There is              I                      To place the decimal point in the correct position in the
       nothing to be shared
                                           0 . 8 7 <            answer, count two digits from the right in the answer.
       equally into 5 groups,
       so zero divided by any           5|4   3 5              There are two digits after the decimal point.
                                          4   0
       number is zero.
                                              3 5
       What is 5  0? It is not                3 5
       possible to divide a
       number by zero. So it is
                                        He uses 0.87 gigabytes of data per day.
       undefined.
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