TAREA: lunes 25 de Octubre

MATEMÁTICAS

1. Calcula:

12 + 7 + 5 =                                    

18 + 4 + 8 =                                   

21 - 6 + 5 =                                     

34 - 9 + 7 =

35 - 12 - 6 =

42 - 12 - 9 =

46 + 14 - 10 =

48 - 26 + 20 =

2. Calcula:

(12 + 4) - 6 =

21 - (7 + 4) =

(32 - 20) + 8 =

(12 + 15) - 3 =

(19 - 12) - 7 =

73 - (23 - 20) =

89 - (15 + 9) =

(45 - 25) + 16 =

LENGUA CASTELLANA

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