Fisa de lucru matematica clasa a 3 a

Fisa de lucru

1.     Rezolva in doua moduri:

5 x ( 30 + 20 ) =                                         ( 60 + 40 ) x 3 =

( 45 + 32 ) x 8 =                                         7 x ( 54 + 32 ) =

4 x ( 63 + 17 ) =                                         ( 25 + 64 ) x 3 =

( 26 + 53 ) x 9 =                                         ( 78 + 18 ) x 6 =

2.     Compara produsele:

90 x 3       2 x 90                               10 x 4     40 x 0

60 x 4       80 x 3                               40 x 3     6 x 20   

40 x 4       5 x 50                               50 x 3     60 x 3