REPÀS TEMA 3 DE MATEMÀTIQUES

1.- Completa i resol:

5 x 2  =  2 x ____                                  9 x 3  =  3 x ____

____        ____                                       ____         ____  

5 x ( 7 x 4 )  =  7 x ( ____ x ____ )          4 x ( 3 x 7 )  =  7 x ( ____ x _____ )

       _____                    _____                        ____                     ____

____                    ____                            ____                    ____

2.- Completa la taula:

x	8	35	956	6.235
10
100
1000

3.- Calcula mentalment aquests productes:

20 x 90 = _________________                       50 x 800 = _______________

9 x 3.000 = _______________                        200 x 25 = _______________

4.- Calcula:

               2 6 8                                               4.8 6 9

               x    6                                               x       8

  __________________                          _______________

5.- Calcula:

               3 2 7                                               7 8 4

              x  2 5                                               x  7 6

     ______________                             ________________

6.- Calcula:

               6. 3 8 7                                           2.2 9 4

            x     9 0 3                                         x   3 1 4

     ­­­­­­­­­­­­­­­­­­__________________                     _____________________

7.- Calcula:

                7.0 0 8                                           8 1. 0 0 0

              x      3 5                                          x         7 0

        _______________                           _________________