Page 181 - SK Year 5 Mathematics DLP
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4  Complete the bridge map below.

                             minutes                          hours                         years
                                             as                              as
                   1                               2                                         1
                                                                                             2
                  10  hour + 0.6 hour              3  day + 0.625 day        0.7 decade +   decade

                  5  Find the errors in these calculations and correct them.




                     a       century    year                                    c    century decade
                                                  b     decade year
                            4      13                                                  6        7
                            5       3                    15     10                   +1         8
                          +1        6                    1 6     8                     8      1 5
                            3       7                  − 4       9                   +1     − 1 0
                                                         1 1     1                     9        5




                  6  Solve these.


                      a     i  4.2 centuries + 18 decades =           decades

                            ii  7.05 centuries − 106 years =          centuries        years

                               11
                      b   Add     year and 2.5 years. Give the answer in months.
                               12
                      c   Calculate the time difference, in centuries and years, between
                           7
                         6   centuries and 9.8 centuries.
                           10
                  7  The following are three cards; P, Q and R.

                             1
                        P 5   years         Q 1.5 years         R 32 months
                            4

                      a  Convert the time on card R to years and months.

                      b   Subtract the time on card R from the time on card P. Give the
                         answer in months.

                      c   How much more time, in years and months, of card P compared to
                         card Q?




                            4.2.1, 4.2.2,                                                             173
                            4.3.1, 4.3.2
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