Page 50 - Whole Numbers (Addition and Subtraction)
P. 50

6. Copy Tables A and B to help you to keep a record of the race.

                      Table A: The distance covered after different times


                      Time             0 min   10 min 20 min 30 min 40 min 50 min
                      Annie              0      1 867             5 504

                      Ellen              0      1 768             5 345
                      Gap                0       99

                      Table B: The distances covered in different 10-minute periods

                                      First     Second      Third     Fourth      Fifth
                      Period
                                     10 min     10 min     10 min     10 min     10 min

                      Annie           1 867      1 835
                      Ellen           1 768      1 778
                      Difference

                  7. Complete as much of the tables as you can. Use the
                      information you produced when you did questions 2 and 3.
                      Write your answer for question 3(c) in the row for “difference”
                      in Table B.


                  During the fourth 10-minute period of the race, Annie runs
                  1 774 m and Ellen runs 1 809 m.

                  8. (a)  Is Ellen now ahead of Annie in the race?

                      (b) Write all the new information into Tables A and B.


                  9. Think about the distances that Ellen ran over the first, second,
                      third and fourth 10-minute periods.

                      (a) Is she running faster or slower as the race progresses?
                      (b) How much further does she run in the second 10 minutes,
                          than in the first 10 minutes?

                      (c) How much further does she run in the third 10 minutes,
                          than in the second 10 minutes?






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